CVE-2026-11119-Padding-Oracle-Attack-on-CBC-Mode-Encryption

CVE-2026-11119 – Padding Oracle Attack on CBC Mode Encryption Program Code Python paddingoracleserver.py - Server that returns padding error from flask import Flask, request from Crypto.Cipher import AES from Crypto.Util.Padding import pad, unpad import os key = os.urandom16 app = Flaskname...

CVE-2026-110926

A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths...

EUVD-2026-101837

A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths...

BIT-KYVERNO-2023-54356 Kyverno before 1.9.5 Sweet32 Medium Strength Cipher Suites

Kyverno versions 1.9.4 and earlier support insecure 3DES cipher suites TLSECDHERSAWITH3DESEDECBCSHA and TLSRSAWITH3DESEDECBCSHA on their TLS endpoints. These 64-bit block ciphers are vulnerable to the Sweet32 attack CVE-2016-2183, which, over very long-lived TLS connections carrying large volumes...

PGP-client-checker-CVE-2021-33560

PGP client checker – CVE-2021-33560 This is a tool to check whether your OpenPGP client is affected by CVE-2021-33560. This vulnerability exposes to plaintext recovery the messages you encrypt to some ElGamal subkeys. The technical details of the vulnerability are described in this blog post and...

Reusing a Nonce, Key Pair in Encryption

Overview Affected versions of this package are vulnerable to Reusing a Nonce, Key Pair in Encryption in the native one-shot CTR packet path ctrpcprocesspacket, which does not check that the request fits the addressable block range and reports the full input length as a success even once the block...

Reusing a Nonce, Key Pair in Encryption

Overview Affected versions of this package are vulnerable to Reusing a Nonce, Key Pair in Encryption in the native one-shot CTR packet path ctrpcprocesspacket, which does not check that the request fits the addressable block range and reports the full input length as a success even once the block...

CVE-2026-71884

In Bouncy Castle for Java LTS before 2.73.13, the native one-shot CTR packet cipher did not check that the requested input length fitted the counter space the IV left. In CTR mode the IV and the block counter share one 16-byte block, so an IV of 13 to 15 bytes leaves a counter of only 1 to 3 byte...

EUVD-2026-95586

In Bouncy Castle for Java LTS before 2.73.13, the native one-shot CTR packet cipher did not check that the requested input length fitted the counter space the IV left. In CTR mode the IV and the block counter share one 16-byte block, so an IV of 13 to 15 bytes leaves a counter of only 1 to 3 byte...

CVE-2026-71884

In Bouncy Castle for Java LTS before 2.73.13, the native one-shot CTR packet cipher did not check that the requested input length fitted the counter space the IV left. In CTR mode the IV and the block counter share one 16-byte block, so an IV of 13 to 15 bytes leaves a counter of only 1 to 3 byte...

CVE-2026-71884

In Bouncy Castle for Java LTS versions before 2.73.13 , a vulnerability exists in the native one-shot CTR packet cipher . The component fails to verify if the requested input length fits the remaining counter space left by an IV of 13 to 15 bytes. This allows the counter to wrap, causing the keys...

CVE-2026-71884 Packet CTR reports a full success length after the counter is exhausted

In Bouncy Castle for Java LTS before 2.73.13, the native one-shot CTR packet cipher did not check that the requested input length fitted the counter space the IV left. In CTR mode the IV and the block counter share one 16-byte block, so an IV of 13 to 15 bytes leaves a counter of only 1 to 3 byte...

PT-2026-108806

In Bouncy Castle for Java LTS before 2.73.13, the native one-shot CTR packet cipher did not check that the requested input length fitted the counter space the IV left. In CTR mode the IV and the block counter share one 16-byte block, so an IV of 13 to 15 bytes leaves a counter of only 1 to 3 byte...

CVE-2026-63567

Observable discrepancy in IesEngine.DecryptBlock in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who has captured an IES or ECIES ciphertext, and who can submit modified ciphertexts for decryption under the same key pair, to recover its plaintext via a CBC...

CVE-2026-63567

The bc-csharp library by Bouncy Castle Inc. is vulnerable in versions before 2.7.0 due to an observable discrepancy in IesEngine.DecryptBlock. In block-cipher mode, the engine decrypts the ciphertext and removes padding before verifying the MAC. This allows a remote attacker to perform a CBC padd...

CVE-2026-63567 IesEngine block-cipher mode checks padding before MAC (CBC padding oracle)

Observable discrepancy in IesEngine.DecryptBlock in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who has captured an IES or ECIES ciphertext, and who can submit modified ciphertexts for decryption under the same key pair, to recover its plaintext via a CBC...

CVE-2026-63567 IesEngine block-cipher mode checks padding before MAC (CBC padding oracle)

Observable discrepancy in IesEngine.DecryptBlock in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who has captured an IES or ECIES ciphertext, and who can submit modified ciphertexts for decryption under the same key pair, to recover its plaintext via a CBC...

CVE-2026-63567 IesEngine block-cipher mode checks padding before MAC (CBC padding oracle)

Observable discrepancy in IesEngine.DecryptBlock in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who has captured an IES or ECIES ciphertext, and who can submit modified ciphertexts for decryption under the same key pair, to recover its plaintext via a CBC...

PT-2026-104105

Observable discrepancy in IesEngine.DecryptBlock in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who has captured an IES or ECIES ciphertext, and who can submit modified ciphertexts for decryption under the same key pair, to recover its plaintext via a CBC...

Rocky Linux 8 [CIQ] Security Update: libgcrypt / libgcrypt-debuginfo / libgcrypt-debugsource / etc (crlsa-2022_5311)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20225311 advisory. libgcrypt: ElGamal implementation allows plaintext recovery CVE-2021-40528 Tenable has extracted the preceding description block directly from the CIQ security...