CVE-2026-32600

Description

xml-security is a library that implements XML signatures and encryption. Prior to 2.3.1, 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.

PUBLISHED Reserved 2026-03-12 | Published 2026-03-13 | Updated 2026-03-13 | Assigner GitHub_M

Problem types

CWE-354: Improper Validation of Integrity Check Value

Product status

References

github.com/...curity/security/advisories/GHSA-r353-4845-pr5p

github.com/...ommit/fdc12449e959c610943f9fd428e95e3832d74c25

cve.org (CVE-2026-32600)

nvd.nist.gov (CVE-2026-32600)

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