Bug 2430201 (CVE-2026-0915) - CVE-2026-0915 glibc: glibc: Information disclosure via zero-valued network query
Summary: CVE-2026-0915 glibc: glibc: Information disclosure via zero-valued network query
Keywords:
Status: NEW
Alias: CVE-2026-0915
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2430317 2430318 2430319 2430320 2430321 2430322
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-15 23:01 UTC by OSIDB Bzimport
Modified: 2026-01-27 08:47 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:1334 0 None None None 2026-01-27 08:47:48 UTC

Description OSIDB Bzimport 2026-01-15 23:01:50 UTC 
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.
Comment 2 errata-xmlrpc 2026-01-27 08:47:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:1334 https://access.redhat.com/errata/RHSA-2026:1334
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