CVE-2026-63072

🔐 CVE-2026-63072 — OpenSSL CMS Heap Buffer Overflow A technical analysis ofCVE-2026-63072 , a heap-based out-of-bounds write affecting OpenSSL's CMS key-unwrapping functionality. 📌 Overview CVE-2026-63072 is a heap-based buffer overflow vulnerability in OpenSSL's CMS Cryptographic Message Syntax...

AZL-97665 CVE-2026-63072 affecting package openssl-fips-provider 3.1.2-2

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 and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write. Impact summary: An attacker who supplies a...

CVE-2026-63072

OpenSSL CMS decryption is vulnerable to a deterministic 8-byte out-of-bounds heap write (CWE-787) in the key-unwrap path of CMS_decrypt() . The root cause is a mismatch: the output buffer is sized by querying the unwrapped key size, but the AES-WRAP-PAD primitive can write and cleanse more bytes ...

Unity Linux 20.1070a Security Update: osbuild-composer (UTSA-2026-101489)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101489 advisory. Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption JWE, JSON Web...

openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap

A flaw was found in the OpenSSL CMS implementation RFC 3211 KEK Unwrap. This vulnerability allows memory corruption, an application level denial of service, or potential execution of attacker-supplied code via crafted CMS messages using password-based encryption PWRI...

Moderate: Red Hat Security Advisory: edk2 security update

An update for edk2 is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System...

SUSE CVE-2026-9076

Issue summary: When CMS password-based decryption RFC 3211 / PWRI key unwrap processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kekunwrapkey. Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of...

EUVD-2026-35475

Issue summary: When CMS password-based decryption RFC 3211 / PWRI key unwrap processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kekunwrapkey. Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of...

ALPINE-CVE-2026-9076

Issue summary: When CMS password-based decryption RFC 3211 / PWRI key unwrap processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kekunwrapkey. Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of...

CVE-2026-9076

Issue summary: When CMS password-based decryption RFC 3211 / PWRI key unwrap processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kekunwrapkey. Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of...

AZL-89790 CVE-2026-9076 affecting package openssl-fips-provider 3.1.2-2

Issue summary: When CMS password-based decryption RFC 3211 / PWRI key unwrap processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kekunwrapkey. Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of...

PT-2026-47856

Name of the Vulnerable Software and Affected Versions OpenSSL affected versions not specified Description A heap out-of-bounds read can occur during CMS password-based decryption RFC 3211 / PWRI key unwrap when processing attacker-supplied CMS data. The issue arises in the kek unwrap key function...

CVE-2026-9076

Issue summary: When CMS password-based decryption RFC 3211 / PWRI key unwrap processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kekunwrapkey. Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of...

Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to a runtime panic condition in Go JOSE [CVE-2026-34986]

Summary IBM Watson Speech Services Cartridge is vulnerable to a runtime panic condition in Go JOSE, due to an issue occuring when cipher.KeyUnwrap in keywrap.go attempts to allocate a slice with a zero or negative length based on the length of the encryptedkey CVE-2026-34986. Go JOSE is used as...

Uncaught Exception

Overview Affected versions of this package are vulnerable to Uncaught Exception in the cipher.KeyUnwrap function when decrypting a JSON Web Encryption JWE object with a key wrapping algorithm ending in 'KW', except for 'A128GCMKW', 'A192GCMKW', and 'A256GCMKW' and the encryptedkey field is empty...

Uncaught Exception

Overview Affected versions of this package are vulnerable to Uncaught Exception in the cipher.KeyUnwrap function when decrypting a JSON Web Encryption JWE object with a key wrapping algorithm ending in 'KW', except for 'A128GCMKW', 'A192GCMKW', and 'A256GCMKW' and the encryptedkey field is empty...

openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap

A flaw was found in the OpenSSL CMS implementation RFC 3211 KEK Unwrap. This vulnerability allows memory corruption, an application level denial of service, or potential execution of attacker-supplied code via crafted CMS messages using password-based encryption PWRI...

SUSE-SU-2026:20542-1 Security update for openssl-3-livepatches

This update for openssl-3-livepatches fixes the following issues: - CVE-2025-11187: Fixed improper validation of PBMAC1 parameters in PKCS12 MAC verification bsc1256878. - CVE-2025-15467: Fixed stack buffer overflow in CMS AuthEnvelopedData parsing bsc1256876. - CVE-2025-15468: Fixed NULL...

openssl security update

1:1.1.1k-14 - Backport fix for Out-of-bounds read & write in RFC 3211 KEK Unwrap Fix CVE-2025-9230 Resolves: RHEL-128613 - Fix bug for ticketlifetimehint exceed issue Resolves: RHEL-119891 1:1.1.1k-13 - Backport fix SSLselectnext proto from OpenSSL 3.2 Fix CVE-2024-5535 Resolves: RHEL-45654...

RHEL 9 : openssl (RHSA-2026:1349)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:1349 advisory. OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength...