DEBIAN-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

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-2026-11800

A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can create unauthorized access tokens. This enables the attacker to...

UBUNTU-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 PKCS7_verify signer confusion allows forged signatures to be accepted

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

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

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

Technical details are not publicly available in the provided documents for CVE-2026-7511. Monitor for updates from vendors and CERT advisories to learn affected products, versions, impact, and remediation.

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-2026-6450

A CRL critical extension bypass exists in ParseCRLExtensions where critical extensions are not properly enforced, allowing a crafted CRL with an unhandled critical extension to be accepted. This only affects builds with CRL support enabled and where a crafted CRL had a trusted signature when pars...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the PKCS7 signature verification process for Azure instance identity. An attacker can obtain agent tokens without authentication by bypassing signature validation. Remediation There is...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the PKCS7 signature verification process for Azure instance identity. An attacker can obtain agent tokens without authentication by bypassing signature validation. Remediation Upgrade...

PT-2026-52622

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description A signer confusion issue in PKCS7 verify allows for forged signatures. This occurs because the signer associated with a signature is not correctly bound, which...

CVE-2026-46349

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing attackers to...

CVE-2026-48028

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors...

CVE-2026-50128 Mastodon: Spoofing of attribution domains

Mastodon is a free, open-source social network server based on ActivityPub. From 4.3.0 until 4.5.11 and 4.4.18, Mastodon has a feature to let websites credit authors of their articles. To prevent false attribution claims, Mastodon uses the attributionDomains JSON-LD term, however, an error in how...

CVE-2026-50128

Mastodon vulnerability CVE-2026-50128 affects versions 4.3.0 through 4.5.11 and 4.4.18, where an error in the attributionDomains JSON-LD handling allows an attacker to arbitrarily modify the attributionDomains value on a legitimately signed Update and bypass signature verification. This can under...

CVE-2026-50128

Mastodon is a free, open-source social network server based on ActivityPub. From 4.3.0 until 4.5.11 and 4.4.18, Mastodon has a feature to let websites credit authors of their articles. To prevent false attribution claims, Mastodon uses the attributionDomains JSON-LD term, however, an error in how...

CVE-2026-48028

Mastodon (open-source social network server) versions prior to 4.5.10, 4.4.17, and 4.3.23 are affected. The vulnerability arises from how incoming activities signed with Linked-Data Signatures are normalized, failing to adequately protect against a class of spoofing that lets an attacker remove J...

CVE-2026-48028 Mastodon: Removal of integrity-protected JSON entries from signed activities

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors...