Red Hat Security AdvisoryRHSA-2026:19061
glibc security update
Released 2026-05-19 · Red Hat rating Moderate · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream (v. 10) glibc-devel-2.39-121.el10_2, glibc-doc-2.39-121.el10_2, glibc-locale-source-2.39-121.el10_2 +1
- Red Hat Enterprise Linux BaseOS (v. 10) glibc-2.39-121.el10_2, glibc-all-langpacks-2.39-121.el10_2, glibc-common-2.39-121.el10_2 +47
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) glibc-benchtests-2.39-121.el10_2, glibc-nss-devel-2.39-121.el10_2, glibc-static-2.39-121.el10_2 +2
Fixes 2 records
Priority LOW 39
Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS s…
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00345 · Published 2026-03-20 · Partial fix CWE-125
Priority LOW 24
Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned t…
CVSS 3.1MEDIUM 5.4· Adjacent network · No auth · No interaction · EPSS 0.00314 · Published 2026-03-20 · Partial fix CWE-20
