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CVE-2026-102555

8.2 high SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 3

  1. References+1 references (now 3)NVD modified 2026-10-15 17:17
  2. StatusAnalyzed → ModifiedNVD modified 2026-10-15 17:17
  3. First seenCVSS 8.2 · gnome, redhatNVD modified 2026-10-15 13:28

Affected (CPE criteria) 3

  • cpe:2.3:a:gnome:libsoup:*:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

References 3