CVE-2026-0915

Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.

Score

CVSS 3.1 7.5 High

Status

Analyzed - 3ff69d7a-14f2-4f67-a097-88dee7810d18

Published

2026-01-15

Last modified

2026-01-20

Weaknesses

CWE-908

Affected products

• Glibc (Gnu)
• Glibc (The Gnu C Library)

References

• https://sourceware.org/bugzilla/show_bug.cgi?id=33802
• http://www.openwall.com/lists/oss-security/2026/01/16/6