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CVE-2026-32600

nvd nist
Published: Mar 16, 2026Modified: Jun 17, 2026

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8.2
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Exploitability: 3.9 / Impact: 4.2
Source: security-advisories@github.com (Secondary)

Description

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.

Affected (2)

Simplesamlphp
1 product
Xml Security
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Simplesamlphp
Xml Security
Before 1.13.9
Xml Security
From 2.0.0 to 2.3.1

Related CWEs

CWE-354
Improper Validation of Integrity Check Value
The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.

References (3)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
ExploitVendor Advisory

Timeline

No history available yet.