diff --git a/NEWS.md b/NEWS.md
index b82342925d..d5c53fa9d6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -12,7 +12,7 @@
 
 2. A regression in v1.13.0 resulted in installation on Mac often failing with `shared object 'datatable.so' not found`, and FreeBSD always failing with `expr: illegal option -- l`, [#4652](https://github.com/Rdatatable/data.table/issues/4652) [#4640](https://github.com/Rdatatable/data.table/issues/4640) [#4650](https://github.com/Rdatatable/data.table/issues/4650). Thanks to many for assistance including Simon Urbanek, Brian Ripley, Wes Morgan, and @ale07alvarez. There were no installation problems on Windows or Linux.
 
-3. Operating on columns of type `list`, e.g. `dt[, listCol[[1]], by=id]`, suffered a performance regression in v1.13.0, [#4646](https://github.com/Rdatatable/data.table/issues/4646) [#4658](https://github.com/Rdatatable/data.table/issues/4658). Thanks to @fabiocs8 and @sandoronodi for the detailed reports, and to Cole Miller for substantial debugging, investigation and proposals at C level which enabled the root cause to be fixed.
+3. Operating on columns of type `list`, e.g. `dt[, listCol[[1]], by=id]`, suffered a performance regression in v1.13.0, [#4646](https://github.com/Rdatatable/data.table/issues/4646) [#4658](https://github.com/Rdatatable/data.table/issues/4658). Thanks to @fabiocs8 and @sandoronodi for the detailed reports, and to Cole Miller for substantial debugging, investigation and proposals at C level which enabled the root cause to be fixed. Related, and also fixed, was a segfault revealed by package POUMM, [#4746](https://github.com/Rdatatable/data.table/issues/4746), when grouping a list column where each item has an attribute; e.g., `coda::mcmc.list`. Detected thanks to CRAN's ASAN checks. Thanks to Venelin Mitov for assistance in tracing the memory fault.
 
 4. `fread("1.2\n", colClasses='integer')` would segfault when creating the warning message due to no column names in the output, [#4644](https://github.com/Rdatatable/data.table/issues/4644). It now warns with `Attempt to override column 1 of inherent type 'float64' down to 'int32' ignored.` When column names are present, the warning message includes the name as before; i.e., `fread("A\n1.2\n", colClasses='integer')` produces `Attempt to override column 1 <<A>> of inherent type 'float64' down to 'int32' ignored.`. Thanks to Kun Ren for reporting.
 
diff --git a/inst/tests/tests.Rraw b/inst/tests/tests.Rraw
index e4dbcb480e..dc49a604a5 100644
--- a/inst/tests/tests.Rraw
+++ b/inst/tests/tests.Rraw
@@ -17150,3 +17150,11 @@ test(2154.1, fread("0.0\n", colClasses="integer"), data.table(V1=0.0),
 test(2154.2, fread("A\n0.0\n", colClasses="integer"), data.table(A=0.0),
              warning="Attempt to override column 1 <<A>> of inherent type 'float64' down to 'int32' ignored.*please")
 
+# asan heap-use-after-free on list columns with attributes on each item, #4746
+DT = data.table(A=INT(1,1,2,3,3,4,5,5,6,7),
+                B=lapply(1:10, function(x) structure(rnorm(90), foo=c(42,12,36))))
+for (i in 0:4) test(2155+i/10,
+  { gctorture2(step=20); ans=DT[, .(attr(B[[1L]],"foo")[1L]), by=A]; gctorture2(step=0); gc(); ans },
+  data.table(A=1:7, V1=42)
+)
+