Bug 2447983 (CVE-2026-32600) - CVE-2026-32600 xml-security: xml-security: Information disclosure and integrity compromise due to insufficient authentication tag length validation
Summary: CVE-2026-32600 xml-security: xml-security: Information disclosure and integri...
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Status: NEW
Alias: CVE-2026-32600
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
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TreeView+ depends on / blocked
 
Reported: 2026-03-16 13:02 UTC by OSIDB Bzimport
Modified: 2026-03-16 13:42 UTC (History)
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Description OSIDB Bzimport 2026-03-16 13:02:20 UTC 
xml-security is a library that implements XML signatures and encryption. Prior to versions 2.3.1 and 1.13.9, XML nodes encrypted with either aes-128-gcm, aes-192-gcm, or aes-256-gcm lack validation of the authentication tag length. An attacker can use this to brute-force an authentication tag, recover the GHASH key, and decrypt the encrypted nodes. It also allows to forge arbitrary ciphertexts without knowing the encryption key. This vulnerability is fixed in 2.3.1 and 1.13.9.
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