openssl: Heap Use-After-Free in OpenSSL PKCS7_verify()

A flaw was found in OpenSSL. When processing a specially crafted PKCS7 or S/MIME Secure/Multipurpose Internet Mail Extensions signed message, a heap use-after-free vulnerability in the PKCS7verify function can be triggered. This occurs if the SignedData digestAlgorithms field is present as an emp...

openssl: Heap Use-After-Free in OpenSSL PKCS7_verify()

A flaw was found in OpenSSL. When processing a specially crafted PKCS7 or S/MIME Secure/Multipurpose Internet Mail Extensions signed message, a heap use-after-free vulnerability in the PKCS7verify function can be triggered. This occurs if the SignedData digestAlgorithms field is present as an emp...

Important: Red Hat Security Advisory: openssl security update

An update for openssl is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

openssl: Heap Use-After-Free in OpenSSL PKCS7_verify()

A flaw was found in OpenSSL. When processing a specially crafted PKCS7 or S/MIME Secure/Multipurpose Internet Mail Extensions signed message, a heap use-after-free vulnerability in the PKCS7verify function can be triggered. This occurs if the SignedData digestAlgorithms field is present as an emp...

RHEL 7 : openssl (RHSA-2026:58563)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:58563 advisory. OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength...

ANT-2026-AYWQW7P2 · openssl · Use-After-Free

use-after-free critical CVE-2026-45447 GHSA-f684-cpcq-j565 Severity Claude high · Security research firm high · Maintainer critical REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-AYWQW7P2: PKCS7verify frees caller-owned indata BIO wh...

openssl: Heap Use-After-Free in OpenSSL PKCS7_verify()

A flaw was found in OpenSSL. When processing a specially crafted PKCS7 or S/MIME Secure/Multipurpose Internet Mail Extensions signed message, a heap use-after-free vulnerability in the PKCS7verify function can be triggered. This occurs if the SignedData digestAlgorithms field is present as an emp...

MiracleLinux 9 : compat-openssl11-1.1.1k-5.el9_8.4 (AXSA:2026-1532:04)

The remote MiracleLinux 9 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2026-1532:04 advisory. openssl: Heap Use-After-Free in OpenSSL PKCS7verify CVE-2026-45447 Tenable has extracted the preceding description block directly from the MiracleLinux...

RockyLinux 9 : compat-openssl11 (RLSA-2026:44438)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:44438 advisory. openssl: Heap Use-After-Free in OpenSSL PKCS7verify CVE-2026-45447 Tenable has extracted the preceding description block directly from the RockyLinux security...

AlmaLinux 9 : compat-openssl11 (ALSA-2026:44438)

The remote AlmaLinux 9 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:44438 advisory. openssl: Heap Use-After-Free in OpenSSL PKCS7verify CVE-2026-45447 Tenable has extracted the preceding description block directly from the AlmaLinux security...

RHEL 9 : compat-openssl11 (RHSA-2026:44438)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:44438 advisory. The OpenSSL toolkit provides support for secure communications between machines. This version of OpenSSL package contains only the libraries from th...

compat-openssl11 security update

1:1.1.1k-5.4 - Fixes CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify...

openssl: Heap Use-After-Free in OpenSSL PKCS7_verify()

A flaw was found in OpenSSL. When processing a specially crafted PKCS7 or S/MIME Secure/Multipurpose Internet Mail Extensions signed message, a heap use-after-free vulnerability in the PKCS7verify function can be triggered. This occurs if the SignedData digestAlgorithms field is present as an emp...

Oracle Linux 8 : compat-openssl10 (ELSA-2026-36215)

The remote Oracle Linux 8 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2026-36215 advisory. 1.1.0-2o-4.3 - Fix CVE-2026-45447: Fix double-free of caller-owned BIO in PKCS7verify Tenable has extracted the preceding description block directly from the...

CVE-2026-7511

PKCS7verify signer confusion allows forged signatures, where the signer associated with a signature is not correctly bound, permitting a forged signature to be accepted...

CVE-2026-7511: Improper Verification of Cryptographic Signature

PKCS7verify signer confusion allows forged signatures, where the signer associated with a signature is not correctly bound, permitting a forged signature to be accepted...

CVE-2026-55961: Improper Verification of Cryptographic Signature

wolfSSLPKCS7verify returning success for a degenerate certs-only PKCS7 object that contains no signer. Such an object has empty signerInfos, so the underlying signed-data verification succeeds without authenticating any content. The compatibility-layer verify path now rejects the object when no...

SUSE-SU-2026:2621-1 Security update for openssl-1_1-livepatches

This update for openssl-11-livepatches fixes the following issues - CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify bsc1266357...

SUSE SLES15 Security Update : openssl-1_1-livepatches (SUSE-SU-2026:2412-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:2412-1 advisory. This update for openssl-11-livepatches fixes the following issues - CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify bsc1266357. Tenable has...

openssl security update

An update is available for openssl. This update affects Rocky Linux 8. 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 Transpo...