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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | Upgrade libsoup3-docUpgrade libsoup3-develNo solution existsUpgrade libsoup3-debuginfoUpgrade libsoup3Upgrade libsoup3-debugsource | Oct 1, 2026 | Sep 3, 2026 |
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