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dnsmasqs extract_name() function can be abused to cause a...

Unreviewed Published May 11, 2026 to the GitHub Advisory Database • Updated May 11, 2026

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-controlled IP address, or to cause a DoS.

References

Published by the National Vulnerability Database May 11, 2026
Published to the GitHub Advisory Database May 11, 2026
Last updated May 11, 2026

Severity

Unknown

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(24th percentile)

Weaknesses

No CWEs

CVE ID

CVE-2026-2291

GHSA ID

GHSA-hjxh-hmm9-wcmc

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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