CVE-2026-102555
8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|
Weaknesses
- CWE-125: Out-of-bounds Read
Workarounds
To mitigate this do not pass untrusted data URIs to soup_uri_decode_data_uri().
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://access.redhat.com/security/cve/CVE-2026-102555
- https://bugzilla.redhat.com/show_bug.cgi?id=2543224
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