https://seclists.org/oss-sec/2026/q1/77: The GNU C Library security advisories update for 2026-01-16
Published Jan 16, 2026
·Updated
Affected Software
1 affected component
GNU C Library>=2.30<2.42
Frequently Asked Questions
1
What is the severity of GLIBC-SA-2026-0001?
The severity of GLIBC-SA-2026-0001 is generally rated as high due to potential heap corruption.
2
How do I fix GLIBC-SA-2026-0001?
To fix GLIBC-SA-2026-0001, you should upgrade your GNU C Library version to at least 2.43 or a later secure version.
3
What systems are affected by GLIBC-SA-2026-0001?
GLIBC-SA-2026-0001 affects the GNU C Library versions from 2.30 to 2.42.
4
What happens if I exploit GLIBC-SA-2026-0001?
Exploiting GLIBC-SA-2026-0001 can lead to application crashes or execution of arbitrary code due to heap corruption.
5
Is there a workaround for GLIBC-SA-2026-0001?
A workaround for GLIBC-SA-2026-0001 is to avoid using the affected memalign functions with large alignment values.