CLEANSTART-2026-JP03196 Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the ...

CVE-2026-75803 affects multiple packages. Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVPCipher function. See references for individual...

PoC_CVE-2025-54887

PoCCVE-2025-54887 This repository contains Proof-of-Concept PoC exploit for CVE-2025-54887. This is a vulnerability in ruby-jwe version = 1.1.0 where the authentication tag of encrypted JWEs can be brute forced, which may result in loss of confidentiality and provide ways to craft arbitrary JWEs...

openssl: AES-OCB IV Ignored on EVP_Cipher() Path

A flaw was found in OpenSSL. Applications that use the AES-OCB encryption method with a specific one-shot interface EVPCipher will have their provided Initialization Vector IV silently discarded. This leads to the same internal cryptographic value being used repeatedly, which compromises the...

CLEANSTART-2026-XK50947 Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local cryptographic verification path where authentication tag comparison was implemented incorrectly

Security vulnerability affects the apache-nifi package. The Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local cryptographic verification path where authentication tag comparison was implemented incorrectly...

CLEANSTART-2026-UN16903 Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local cryptographic verification path where authentication tag comparison was implemented incorrectly

Security vulnerability affects the apache-nifi package. The Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local cryptographic verification path where authentication tag comparison was implemented incorrectly...

Rocky Linux 8 [CIQ] Security Update: cjose / cjose-debuginfo / cjose-debugsource / cjose-devel / etc (crlsa-2023_4418)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20234418 advisory. cjose: AES GCM decryption uses the Tag length from the actual Authentication Tag provided in the JWE CVE-2023-37464 Tenable has extracted the preceding description...

Ubuntu 24.04 LTS / 26.04 LTS / Pro Realtime 24.04 LTS : GnuPG vulnerability (USN-8720-1)

The remote Ubuntu 24.04 LTS / 26.04 LTS / Pro Realtime 24.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8720-1 advisory. It was discovered that GnuPG incorrectly validated authentication tag lengths when parsing CMS messages encrypted with AES-GC...

CVE-2026-87732

CVE-2026-87732 affects the mirage-crypto OCaml package before 2.2.0 . The AES.GCM.authenticate_decrypt_into and Chacha20.authenticate_decrypt_into functions write the decrypted plaintext into a caller-provided buffer before comparing the authentication tag. On a forged tag the function correctly ...

SUSE CVE-2026-80832

In the Linux kernel, the following vulnerability has been resolved: crypto: qce - fix CCM AAD buffer underallocation The AAD buffer allocated in qceaeadccmpreparebufassoclen can be smaller than the length later programmed into the DMA scatterlist. The allocation size is currently calculated as:...

USN-8720-1: GnuPG vulnerability

It was discovered that GnuPG incorrectly validated authentication tag lengths when parsing CMS messages encrypted with AES-GCM. An attacker could possibly use this issue to bypass message integrity checks...

USN-8720-1 gnupg2 vulnerability

It was discovered that GnuPG incorrectly validated authentication tag lengths when parsing CMS messages encrypted with AES-GCM. An attacker could possibly use this issue to bypass message integrity checks...

PT-2026-85369

It was discovered that GnuPG incorrectly validated authentication tag lengths when parsing CMS messages encrypted with AES-GCM. An attacker could possibly use this issue to bypass message integrity checks...

CVE-2026-81020 wolfEngine reuses the AES-GCM nonce on every TLS 1.2 / DTLS 1.2 record

wolfEngine before 1.4.1 generates the 8-byte explicit AES-GCM nonce once when the TLS write key is set and never increments it per record. As a result every TLS 1.2 and DTLS 1.2 AES-GCM record within a connection is encrypted under an identical key and nonce pair. Reusing a GCM key and nonce...

CVE-2026-81020

wolfEngine before 1.4.1 generates the 8-byte explicit AES-GCM nonce once when the TLS write key is set and never increments it per record. As a result every TLS 1.2 and DTLS 1.2 AES-GCM record within a connection is encrypted under an identical key and nonce pair. Reusing a GCM key and nonce...

CVE-2026-81019

wolfProvider before 1.2.2 generates the 8-byte explicit AES-GCM nonce once when the TLS write key is set and never increments it per record. As a result every TLS 1.2 and DTLS 1.2 AES-GCM record within a connection is encrypted under an identical key and nonce pair. Reusing a GCM key and nonce...

CVE-2026-81019: Reusing a Nonce, Key Pair in Encryption

wolfProvider before 1.2.2 generates the 8-byte explicit AES-GCM nonce once when the TLS write key is set and never increments it per record. As a result every TLS 1.2 and DTLS 1.2 AES-GCM record within a connection is encrypted under an identical key and nonce pair. Reusing a GCM key and nonce...

CVE-2026-81020: Reusing a Nonce, Key Pair in Encryption

wolfEngine before 1.4.1 generates the 8-byte explicit AES-GCM nonce once when the TLS write key is set and never increments it per record. As a result every TLS 1.2 and DTLS 1.2 AES-GCM record within a connection is encrypted under an identical key and nonce pair. Reusing a GCM key and nonce...

CVE-2026-12817

A flaw was found in Bouncy Castle for Java. This vulnerability affects the OpenPGP Authenticated Encryption with Associated Data AEAD decryption process. Specifically, the system fails to verify the final authentication tag when processing data that is aligned in chunks. This oversight could allo...

Plaintext Exposure

Bouncy Castle for Java is vulnerable to plaintext exposure. The vulnerability is due to CCM-family modes writing decrypted plaintext to the caller-provided buffer before verifying the authentication tag, which allows an attacker to exploit unauthenticated or tampered ciphertext to access plaintex...

OpenSSL Security Advisory 20260825

OpenSSL Security Advisory 20260825 - ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVPCipher function...