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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History
Mon, 16 Mar 2026 14:15:00 +0000
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ssvc
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Mon, 16 Mar 2026 12:45:00 +0000
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| 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. | 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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Mon, 16 Mar 2026 10:15:00 +0000
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Simplesamlphp
Simplesamlphp xml-security |
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Simplesamlphp
Simplesamlphp xml-security |
Fri, 13 Mar 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
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| 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. | |
| Title | xml-security is Missing AES-GCM Authentication Tag Validation on Encrypted Nodes Allows for Unauthorized Decryption | |
| Weaknesses | CWE-354 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-03-13T19:58:41.692Z
Updated: 2026-03-16T14:03:17.811Z
Reserved: 2026-03-12T14:54:24.269Z
Link: CVE-2026-32600
Updated: 2026-03-16T14:03:09.793Z
Status : Awaiting Analysis
Published: 2026-03-16T14:19:38.953
Modified: 2026-03-16T14:53:07.390
Link: CVE-2026-32600
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