Vulnerable Library - express-4.16.4.tgz
Fast, unopinionated, minimalist web framework
Library home page: https://registry.npmjs.org/express/-/express-4.16.4.tgz
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Vulnerabilities
| Vulnerability |
Severity |
 CVSS |
Dependency |
Type |
Fixed in (express version) |
Remediation Possible** |
| CVE-2026-4867 |
 High |
7.5 |
path-to-regexp-0.1.7.tgz |
Transitive |
N/A* |
❌ |
| CVE-2024-52798 |
High |
7.5 |
path-to-regexp-0.1.7.tgz |
Transitive |
4.17.0 |
❌ |
| CVE-2024-45296 |
High |
7.5 |
path-to-regexp-0.1.7.tgz |
Transitive |
4.17.0 |
❌ |
| CVE-2024-29041 |
 Medium |
6.1 |
express-4.16.4.tgz |
Direct |
4.19.0 |
❌ |
| CVE-2024-43800 |
Medium |
5.0 |
serve-static-1.13.2.tgz |
Transitive |
4.20.0 |
❌ |
| CVE-2024-43799 |
Medium |
5.0 |
send-0.16.2.tgz |
Transitive |
4.21.0 |
❌ |
| CVE-2024-43796 |
Medium |
5.0 |
express-4.16.4.tgz |
Direct |
4.20.0 |
❌ |
*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2026-4867
Vulnerable Library - path-to-regexp-0.1.7.tgz
Express style path to RegExp utility
Library home page: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz
Dependency Hierarchy:
- express-4.16.4.tgz (Root Library)
- ❌ path-to-regexp-0.1.7.tgz (Vulnerable Library)
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
Impact:
A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period (.). For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in path-to-regexp@0.1.12 only prevents ambiguity for two parameters. With three or more, the generated lookahead does not block single separator characters, so capture groups overlap and cause catastrophic backtracking.
Patches:
Upgrade to path-to-regexp@0.1.13
Custom regex patterns in route definitions (e.g., /:a-:b([^-/]+)-:c([^-/]+)) are not affected because they override the default capture group.
Workarounds:
All versions can be patched by providing a custom regular expression for parameters after the first in a single segment. As long as the custom regular expression does not match the text before the parameter, you will be safe. For example, change /:a-:b-:c to /:a-:b([^-/]+)-:c([^-/]+).
If paths cannot be rewritten and versions cannot be upgraded, another alternative is to limit the URL length.
Publish Date: 2026-03-26
URL: CVE-2026-4867
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-37ch-88jc-xwx2
Release Date: 2026-03-26
Fix Resolution: path-to-regexp - 0.1.13
CVE-2024-52798
Vulnerable Library - path-to-regexp-0.1.7.tgz
Express style path to RegExp utility
Library home page: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz
Dependency Hierarchy:
- express-4.16.4.tgz (Root Library)
- ❌ path-to-regexp-0.1.7.tgz (Vulnerable Library)
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
path-to-regexp turns path strings into a regular expressions. In certain cases, path-to-regexp will output a regular expression that can be exploited to cause poor performance. The regular expression that is vulnerable to backtracking can be generated in the 0.1.x release of path-to-regexp. Upgrade to 0.1.12. This vulnerability exists because of an incomplete fix for CVE-2024-45296.
Publish Date: 2024-12-05
URL: CVE-2024-52798
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-rhx6-c78j-4q9w
Release Date: 2024-12-05
Fix Resolution (path-to-regexp): 0.1.12
Direct dependency fix Resolution (express): 4.17.0
CVE-2024-45296
Vulnerable Library - path-to-regexp-0.1.7.tgz
Express style path to RegExp utility
Library home page: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz
Dependency Hierarchy:
- express-4.16.4.tgz (Root Library)
- ❌ path-to-regexp-0.1.7.tgz (Vulnerable Library)
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
path-to-regexp turns path strings into a regular expressions. In certain cases, path-to-regexp will output a regular expression that can be exploited to cause poor performance. Because JavaScript is single threaded and regex matching runs on the main thread, poor performance will block the event loop and lead to a DoS. The bad regular expression is generated any time you have two parameters within a single segment, separated by something that is not a period (.). For users of 0.1, upgrade to 0.1.10. All other users should upgrade to 8.0.0.
Publish Date: 2024-09-09
URL: CVE-2024-45296
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-9wv6-86v2-598j
Release Date: 2024-09-09
Fix Resolution (path-to-regexp): 0.1.10
Direct dependency fix Resolution (express): 4.17.0
CVE-2024-29041
Vulnerable Library - express-4.16.4.tgz
Fast, unopinionated, minimalist web framework
Library home page: https://registry.npmjs.org/express/-/express-4.16.4.tgz
Dependency Hierarchy:
- ❌ express-4.16.4.tgz (Vulnerable Library)
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
Express.js minimalist web framework for node. Versions of Express.js prior to 4.19.0 and all pre-release alpha and beta versions of 5.0 are affected by an open redirect vulnerability using malformed URLs. When a user of Express performs a redirect using a user-provided URL Express performs an encode "using "encodeurl"" (https://github.com/pillarjs/encodeurl) on the contents before passing it to the "location" header. This can cause malformed URLs to be evaluated in unexpected ways by common redirect allow list implementations in Express applications, leading to an Open Redirect via bypass of a properly implemented allow list. The main method impacted is "res.location()" but this is also called from within "res.redirect()". The vulnerability is fixed in 4.19.2 and 5.0.0-beta.3.
Mend Note: The description of this vulnerability differs from MITRE.
Publish Date: 2024-03-25
URL: CVE-2024-29041
CVSS 3 Score Details (6.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-rv95-896h-c2vc
Release Date: 2024-03-25
Fix Resolution: 4.19.0
CVE-2024-43800
Vulnerable Library - serve-static-1.13.2.tgz
Serve static files
Library home page: https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz
Dependency Hierarchy:
- express-4.16.4.tgz (Root Library)
- ❌ serve-static-1.13.2.tgz (Vulnerable Library)
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
serve-static serves static files. serve-static passes untrusted user input - even after sanitizing it - to redirect() may execute untrusted code. This issue is patched in serve-static 1.16.0.
Publish Date: 2024-09-10
URL: CVE-2024-43800
CVSS 3 Score Details (5.0)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-cm22-4g7w-348p
Release Date: 2024-09-10
Fix Resolution (serve-static): 1.16.0
Direct dependency fix Resolution (express): 4.20.0
CVE-2024-43799
Vulnerable Library - send-0.16.2.tgz
Better streaming static file server with Range and conditional-GET support
Library home page: https://registry.npmjs.org/send/-/send-0.16.2.tgz
Dependency Hierarchy:
- express-4.16.4.tgz (Root Library)
- ❌ send-0.16.2.tgz (Vulnerable Library)
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
Send is a library for streaming files from the file system as a http response. Send passes untrusted user input to SendStream.redirect() which executes untrusted code. This issue is patched in send 0.19.0.
Publish Date: 2024-09-10
URL: CVE-2024-43799
CVSS 3 Score Details (5.0)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-m6fv-jmcg-4jfg
Release Date: 2024-09-10
Fix Resolution (send): 0.19.0
Direct dependency fix Resolution (express): 4.21.0
CVE-2024-43796
Vulnerable Library - express-4.16.4.tgz
Fast, unopinionated, minimalist web framework
Library home page: https://registry.npmjs.org/express/-/express-4.16.4.tgz
Dependency Hierarchy:
- ❌ express-4.16.4.tgz (Vulnerable Library)
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
Express.js minimalist web framework for node. In express < 4.20.0, passing untrusted user input - even after sanitizing it - to response.redirect() may execute untrusted code. This issue is patched in express 4.20.0.
Publish Date: 2024-09-10
URL: CVE-2024-43796
CVSS 3 Score Details (5.0)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-qw6h-vgh9-j6wx
Release Date: 2024-09-10
Fix Resolution: 4.20.0
Fast, unopinionated, minimalist web framework
Library home page: https://registry.npmjs.org/express/-/express-4.16.4.tgz
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Vulnerabilities
*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
Vulnerable Library - path-to-regexp-0.1.7.tgz
Express style path to RegExp utility
Library home page: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz
Dependency Hierarchy:
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
Impact:
A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period (.). For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in path-to-regexp@0.1.12 only prevents ambiguity for two parameters. With three or more, the generated lookahead does not block single separator characters, so capture groups overlap and cause catastrophic backtracking.
Patches:
Upgrade to path-to-regexp@0.1.13
Custom regex patterns in route definitions (e.g., /:a-:b([^-/]+)-:c([^-/]+)) are not affected because they override the default capture group.
Workarounds:
All versions can be patched by providing a custom regular expression for parameters after the first in a single segment. As long as the custom regular expression does not match the text before the parameter, you will be safe. For example, change /:a-:b-:c to /:a-:b([^-/]+)-:c([^-/]+).
If paths cannot be rewritten and versions cannot be upgraded, another alternative is to limit the URL length.
Publish Date: 2026-03-26
URL: CVE-2026-4867
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-37ch-88jc-xwx2
Release Date: 2026-03-26
Fix Resolution: path-to-regexp - 0.1.13
Vulnerable Library - path-to-regexp-0.1.7.tgz
Express style path to RegExp utility
Library home page: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz
Dependency Hierarchy:
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
path-to-regexp turns path strings into a regular expressions. In certain cases, path-to-regexp will output a regular expression that can be exploited to cause poor performance. The regular expression that is vulnerable to backtracking can be generated in the 0.1.x release of path-to-regexp. Upgrade to 0.1.12. This vulnerability exists because of an incomplete fix for CVE-2024-45296.
Publish Date: 2024-12-05
URL: CVE-2024-52798
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-rhx6-c78j-4q9w
Release Date: 2024-12-05
Fix Resolution (path-to-regexp): 0.1.12
Direct dependency fix Resolution (express): 4.17.0
Vulnerable Library - path-to-regexp-0.1.7.tgz
Express style path to RegExp utility
Library home page: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz
Dependency Hierarchy:
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
path-to-regexp turns path strings into a regular expressions. In certain cases, path-to-regexp will output a regular expression that can be exploited to cause poor performance. Because JavaScript is single threaded and regex matching runs on the main thread, poor performance will block the event loop and lead to a DoS. The bad regular expression is generated any time you have two parameters within a single segment, separated by something that is not a period (.). For users of 0.1, upgrade to 0.1.10. All other users should upgrade to 8.0.0.
Publish Date: 2024-09-09
URL: CVE-2024-45296
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-9wv6-86v2-598j
Release Date: 2024-09-09
Fix Resolution (path-to-regexp): 0.1.10
Direct dependency fix Resolution (express): 4.17.0
Vulnerable Library - express-4.16.4.tgz
Fast, unopinionated, minimalist web framework
Library home page: https://registry.npmjs.org/express/-/express-4.16.4.tgz
Dependency Hierarchy:
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
Express.js minimalist web framework for node. Versions of Express.js prior to 4.19.0 and all pre-release alpha and beta versions of 5.0 are affected by an open redirect vulnerability using malformed URLs. When a user of Express performs a redirect using a user-provided URL Express performs an encode "using "encodeurl"" (https://github.com/pillarjs/encodeurl) on the contents before passing it to the "location" header. This can cause malformed URLs to be evaluated in unexpected ways by common redirect allow list implementations in Express applications, leading to an Open Redirect via bypass of a properly implemented allow list. The main method impacted is "res.location()" but this is also called from within "res.redirect()". The vulnerability is fixed in 4.19.2 and 5.0.0-beta.3.
Mend Note: The description of this vulnerability differs from MITRE.
Publish Date: 2024-03-25
URL: CVE-2024-29041
CVSS 3 Score Details (6.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-rv95-896h-c2vc
Release Date: 2024-03-25
Fix Resolution: 4.19.0
Vulnerable Library - serve-static-1.13.2.tgz
Serve static files
Library home page: https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz
Dependency Hierarchy:
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
serve-static serves static files. serve-static passes untrusted user input - even after sanitizing it - to redirect() may execute untrusted code. This issue is patched in serve-static 1.16.0.
Publish Date: 2024-09-10
URL: CVE-2024-43800
CVSS 3 Score Details (5.0)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-cm22-4g7w-348p
Release Date: 2024-09-10
Fix Resolution (serve-static): 1.16.0
Direct dependency fix Resolution (express): 4.20.0
Vulnerable Library - send-0.16.2.tgz
Better streaming static file server with Range and conditional-GET support
Library home page: https://registry.npmjs.org/send/-/send-0.16.2.tgz
Dependency Hierarchy:
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
Send is a library for streaming files from the file system as a http response. Send passes untrusted user input to SendStream.redirect() which executes untrusted code. This issue is patched in send 0.19.0.
Publish Date: 2024-09-10
URL: CVE-2024-43799
CVSS 3 Score Details (5.0)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-m6fv-jmcg-4jfg
Release Date: 2024-09-10
Fix Resolution (send): 0.19.0
Direct dependency fix Resolution (express): 4.21.0
Vulnerable Library - express-4.16.4.tgz
Fast, unopinionated, minimalist web framework
Library home page: https://registry.npmjs.org/express/-/express-4.16.4.tgz
Dependency Hierarchy:
Found in HEAD commit: 77381111af8bc799f10a64e8ee29ecafe895f739
Found in base branch: master
Vulnerability Details
Express.js minimalist web framework for node. In express < 4.20.0, passing untrusted user input - even after sanitizing it - to response.redirect() may execute untrusted code. This issue is patched in express 4.20.0.
Publish Date: 2024-09-10
URL: CVE-2024-43796
CVSS 3 Score Details (5.0)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-qw6h-vgh9-j6wx
Release Date: 2024-09-10
Fix Resolution: 4.20.0