Out-of-bounds Read Affecting libsoup3-doc package, versions <0:3.6.5-3.el10_2.20


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.37% (30th percentile)

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  • Snyk IDSNYK-RHEL10-LIBSOUP3DOC-20989617
  • published16 Oct 2026
  • disclosed3 Sept 2026

Introduced: 3 Sep 2026

CVE-2026-102555  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:10 libsoup3-doc to version 0:3.6.5-3.el10_2.20 or higher.
This issue was patched in RHSA-2026:83618.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsoup3-doc package and not the libsoup3-doc package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

A flaw was found in libsoup. The soup_uri_decode_data_uri() function incorrectly treated base64 data-URI payloads as NUL-terminated strings when calling g_base64_decode_inplace(). If the percent-decoded payload contained embedded NUL bytes, the decoded length could remain uninitialized and be used as the size of the returned GBytes. This can lead to an out-of-bounds read or application crash when processing a crafted data URI.

CVSS Base Scores

version 3.1