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Vulnerability · Gnome Libsoup

CVE-2026-102558

A flaw was found in libsoup. When max-incoming-payload-size is unlimited (0), SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data.

CVSS score (v3.1)8.6High
Fixed in 3.7.3
Not on CISA KEV list

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Timeline

  1. Published by NVD
  2. Last updated by NVD

Affected products

ProductVersions
Gnome Libsoupup to before 3.7.3
Redhat Enterprise Linux10.0 only; 7.0 only; 8.0 only; 9.0 only

Sources: NVD and CISA known exploited vulnerabilities catalogue.