CVE-2026-32600

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-32600
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.

8.2 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/simplesamlphp/xml-security/commit/cad6d57cf0a5a0b7e0cc4e4a5b18752e56eb1520 Patch
https://github.com/simplesamlphp/xml-security/commit/fdc12449e959c610943f9fd428e95e3832d74c25 Patch
https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-r353-4845-pr5p Exploit Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:simplesamlphp:xml-security:*:*:*:*:*:*:*:*
cpe:2.3:a:simplesamlphp:xml-security:*:*:*:*:*:*:*:*
History

17 Mar 2026, 19:25

Type Values Removed Values Added
CPE cpe:2.3:a:simplesamlphp:xml-security:*:*:*:*:*:*:*:*
First Time Simplesamlphp xml-security
Simplesamlphp
References () https://github.com/simplesamlphp/xml-security/commit/cad6d57cf0a5a0b7e0cc4e4a5b18752e56eb1520 - () https://github.com/simplesamlphp/xml-security/commit/cad6d57cf0a5a0b7e0cc4e4a5b18752e56eb1520 - Patch
References () https://github.com/simplesamlphp/xml-security/commit/fdc12449e959c610943f9fd428e95e3832d74c25 - () https://github.com/simplesamlphp/xml-security/commit/fdc12449e959c610943f9fd428e95e3832d74c25 - Patch
References () https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-r353-4845-pr5p - () https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-r353-4845-pr5p - Exploit, Vendor Advisory

16 Mar 2026, 14:19

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-16 14:19

Updated : 2026-03-17 19:25

NVD link : CVE-2026-32600

Mitre link : CVE-2026-32600

CVE.ORG link : CVE-2026-32600

JSON object : View

Products Affected

simplesamlphp

  • xml-security
CWE
CWE-354

Improper Validation of Integrity Check Value