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CVE-2026-0915

HighPublished

getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler

Published: Jan 15, 2026
Updated: Jan 20, 2026
Assigning CNA: glibc
Evidence observed: Aug 25, 2026

Primary CVSS

7.5/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS probability estimate

0.6%

Low · next 30 days

Percentile: 48.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2026-0915-json-Patch.-V2.0Patch
Provides a security patch for CVE-2026-0915, adding strict JSON schema validation, input sanitization, and rate limiting to prevent injection and DoS attacks in Node.js applications.

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