Vulnerability · Gnome Libsoup
CVE-2026-102555
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 score (v3.1)8.2High
Fixed in 3.7.3
Not on CISA KEV list
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Show me how to fix itTimeline
- Published by NVD
- Last updated by NVD
Affected products
| Product | Versions |
|---|---|
| Gnome Libsoup | up to before 3.7.3 |
| Redhat Enterprise Linux | 10.0 only; 9.0 only |
Sources: NVD and CISA known exploited vulnerabilities catalogue.