Amazon Linux 2023 Security Advisory: ALAS2023-2026-1425
Advisory Released Date: 2026-02-18
Advisory Updated Date: 2026-02-18
Severity:
Medium
Issue Overview:
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation. (CVE-2026-25210)
Affected Packages:
expat
Issue Correction:
Run dnf update expat --releasever 2023.10.20260216 or dnf update --advisory ALAS2023-2026-1425 --releasever 2023.10.20260216 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
aarch64:
expat-debuginfo-2.6.3-1.amzn2023.0.4.aarch64
expat-debugsource-2.6.3-1.amzn2023.0.4.aarch64
expat-static-2.6.3-1.amzn2023.0.4.aarch64
expat-2.6.3-1.amzn2023.0.4.aarch64
expat-devel-2.6.3-1.amzn2023.0.4.aarch64
src:
expat-2.6.3-1.amzn2023.0.4.src
x86_64:
expat-debugsource-2.6.3-1.amzn2023.0.4.x86_64
expat-devel-2.6.3-1.amzn2023.0.4.x86_64
expat-debuginfo-2.6.3-1.amzn2023.0.4.x86_64
expat-2.6.3-1.amzn2023.0.4.x86_64
expat-static-2.6.3-1.amzn2023.0.4.x86_64