openssl: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()

A flaw was found in OpenSSL's CMSdecrypt and PKCS7decrypt functions. This vulnerability, a Bleichenbacher-style oracle, could allow a remote attacker to decrypt or sign messages using the victim's private RSA key. Exploitation requires the attacker to provide specially crafted CMS or S/MIME...

openssl: Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate

A flaw was found in the Certificate Management Protocol CMP implementation within OpenSSL. An attacker with existing Registration Authority RA level credentials could exploit an error in the certificate verification process during a Root Certificate Authority CA key update. This vulnerability...

openssl: FFC-DH Peer Validation Uses Attacker-Supplied q

A flaw was found in OpenSSL. A malicious peer can exploit this vulnerability by presenting a specially crafted DHX X9.42 peer key. Due to improper validation of the peer key's subgroup membership, an attacker can recover the victim's private key after a small number of key exchange attempts. This...

openssl: NULL Pointer Dereference in CRMF EncryptedValue Decryption

A flaw was found in OpenSSL. An attacker controlling a Certificate Management Protocol CMP server, or acting as a man-in-the-middle, could craft a malicious CMP response. This response, containing a Certificate Request Message Format CRMF CertRepMessage with a specific malformed EncryptedValue...

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...

openssl: compat-openssl: openssl: Information disclosure via DTLS handshake retransmission

A flaw was found in OpenSSL. The Datagram Transport Layer Security DTLS retransmission mechanism fails to properly handle handshake message writes that are suspended before completion. A remote attacker could exploit this vulnerability during handshake message retransmission, causing OpenSSL to...

openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys

A flaw was found in OpenSSL. This vulnerability allows a remote attacker to forge PKCS12 Public-Key Cryptography Standards 12 files that use Password-Based Message Authentication Code 1 PBMAC1 with short HMAC Hash-based Message Authentication Code keys. This can lead to a service accepting...

CLSA-2026-1789474528 openssl: Fix of CVE-2026-31789

CVE-2026-31789: bound the length passed to hextostring so the hex buffer size computation cannot overflow when printing Subject Key Identifier or Authority Key Identifier extensions...

openssl security, bug fix, and enhancement update

An update is available for openssl. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and...

RLSA-2026:67154 Important: openssl security, bug fix, and enhancement update

OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength general-purpose cryptography library. Security Fixes: openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server CVE-2026-14456 openssl: QUI...

CVE-2026-75803

A flaw in OpenSSL causes EVPCipher to skip AEAD tag verification for ChaCha20-Poly1305 and AES-OCB ciphers when decrypting empty ciphertexts. This allows remote attackers to submit forged messages that affected applications incorrectly accept as valid. Mitigation To mitigate this ensure that all...

RockyLinux 10 : openssl (RLSA-2026:67154)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:67154 advisory. openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server CVE-2026-14456 openssl: QUIC server may trigger double free when...

AlmaLinux 9 : openssl (ALSA-2026:67165)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:67165 advisory. openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server CVE-2026-14456 openssl: QUIC server may trigger double free when processin...

PT-2026-92035

Name of the Vulnerable Software and Affected Versions NGINX Plus affected versions not specified NGINX Open Source versions prior to 1.30.5 NGINX Open Source versions prior to 1.31.6 Description A heap buffer overflow can occur in the ngx http v3 module module when using HTTP/3 with OpenSSL...

PT-2026-97281

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.25 Apache Tomcat versions 10.1.0-M1 through 10.1.58 Apache Tomcat versions 9.0.0-M1 through 9.0.121 Apache Tomcat versions 8.5.0 through 8.5.100 Description An improper check for certificate...

RockyLinux 9 : openssl (RLSA-2026:67165)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:67165 advisory. openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server CVE-2026-14456 openssl: QUIC server may trigger double free when processi...

AlmaLinux 10 : openssl (ALSA-2026:67154)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:67154 advisory. openssl: OpenSSL: Denial of Service via unbounded memory growth in QUIC server CVE-2026-14456 openssl: QUIC server may trigger double free when processi...

nginx -- buffer overflow when using ngx_http_v3_module

The nginx development team reports: Buffer overflow when using ngxhttpv3module CVE-2026-90439. Severity: medium. A heap memory buffer overflow might occur in a worker process under certain configurations when using HTTP/3 with OpenSSL 3.5.0 and earlier...

OESA-2026-3857 edk2 security update

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fixes: Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write...

OESA-2026-3858 edk2 security update

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fixes: Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write...