CVE-2026-0861
Published: January 16, 2026Last modified: January 20, 2026
Description
Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc, valloc, pvalloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.4 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | glibc | Fixed (2.37.0-r20) |
| 25 LTS | glibc | Fixed (2.39.0-r5) | |
| Stream | glibc | Fixed (2.39.0-r6) | |
| Hardened Containers | 23 LTS | glibc | Fixed (2.37.0-r20) |
| 25 LTS | glibc | Fixed (2.39.0-r5) | |
| Stream | glibc | Fixed (2.39.0-r6) |