CVE-2026-18568: Improper Verification of Cryptographic Signature

XML::Sig versions from 0.29 before 0.72 for Perl allow signature verification bypass because verify returns true when every signature was skipped before any cryptographic check. verify in lib/XML/Sig.pm counts the //dsig:Signature elements into $numsigs and iterates over them, but two paths reach...

CVE-2026-59639: Improper Verification of Cryptographic Signature

In Bouncy Castle for Java before 1.85, CMS verifySignatures returns true for SignedData with zero signers. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS BC-FJA before bcpkix-fips 1.0.12 1.0.X series, 2.0.12 2.0.X series and 2.1.12 2.1.X series...

CVE-2026-18108: Improper Verification of Cryptographic Signature

Net::SAML2 versions before 0.86 for Perl allow authentication bypass because verifyencryptedassertion accepts an EncryptedAssertion whose decrypted content carries no signature. verifyencryptedassertion decrypts the EncryptedAssertion and returns it as verified when it carries no signature, via...

PT-2026-67426

XML::Sig versions from 0.29 before 0.72 for Perl allow signature verification bypass because verify returns true when every signature was skipped before any cryptographic check. verify in lib/XML/Sig.pm counts the //dsig:Signature elements into $numsigs and iterates over them, but two paths reach...

PT-2026-67394

Name of the Vulnerable Software and Affected Versions Net::SAML2 versions prior to 0.86 Description An authentication bypass exists due to XML signature wrapping. The new from xml function retrieves identity fields—including NameID, attribute values, SessionIndex, and audience—using document-wide...

HP LaserJet Printers Improper Verification of Cryptographic Signature (CVE-2018-5923)

In HP LaserJet Enterprise, HP PageWide Enterprise, HP LaserJet Managed, and HP OfficeJet Enterprise Printers, solution application signature checking may allow potential execution of arbitrary code. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot f...

HP LaserJet Printers Improper Verification of Cryptographic Signature (CVE-2019-6318)

HP LaserJet Enterprise printers, HP PageWide Enterprise printers, HP LaserJet Managed printers, HP Officejet Enterprise printers have an insufficient solution bundle signature validation that potentially allows execution of arbitrary code. This plugin only works with Tenable.ot. Please visit...

CVE-2026-8457

The CVE affects the WooCommerce – Social Login plugin for WordPress up to version 2.8.7. Root cause: the Apple login handler decodes the id_token payload without validating the JWT signature against Apple’s public keys and without verifying issuer, audience, or expiry, combined with a publicly ex...

CVE-2026-55735

Improper Verification of Cryptographic Signature in ueberauth guardian allows an unauthenticated attacker to revoke a victim's session with a forged token. Guardian.revoke/3 in lib/guardian.ex decodes the supplied token with peek/1, which performs no signature verification it only base64-decodes...

CVE-2026-55735

Improper Verification of Cryptographic Signature in ueberauth guardian allows an unauthenticated attacker to revoke a victim's session with a forged token. Guardian.revoke/3 in lib/guardian.ex decodes the supplied token with peek/1, which performs no signature verification it only base64-decodes...

EUVD-2026-51914

Improper Verification of Cryptographic Signature in ueberauth guardian allows an unauthenticated attacker to revoke a victim's session with a forged token. Guardian.revoke/3 in lib/guardian.ex decodes the supplied token with peek/1, which performs no signature verification it only base64-decodes...

CVE-2026-55735 Guardian.revoke/3 acts on unverified token claims, allowing forged-token session revocation

Improper Verification of Cryptographic Signature in ueberauth guardian allows an unauthenticated attacker to revoke a victim's session with a forged token. Guardian.revoke/3 in lib/guardian.ex decodes the supplied token with peek/1, which performs no signature verification it only base64-decodes...

RUSTSEC-2026-0224 Verification cache poisoning allows forged Nostr events to bypass signature validation

The nostr-relay-pool crate cached the result of event signature verification before the check was actually performed. Because the entry was inserted unconditionally, a first delivery whose signature failed was still recorded in the cache. A subsequent delivery of the same event identical ID, but...

Verification cache poisoning allows forged Nostr events to bypass signature validation

The nostr-relay-pool crate cached the result of event signature verification before the check was actually performed. Because the entry was inserted unconditionally, a first delivery whose signature failed was still recorded in the cache. A subsequent delivery of the same event identical ID, but...

Improper Verification of Cryptographic Signature

Overview thumbor is a thumbor is an open-source photo thumbnail service by globo.com Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the URL signature removal process. An attacker can manipulate the validated URL and bypass intended access...

Improper Verification of Cryptographic Signature

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the backchannel logout endpoint of the keycloak-services...

DEBIAN-CVE-2026-63362

An unsigned integer underflow in the PubSub signature verification path in open62541 may allow a remote attacker to cause a denial of service via a crafted UDP packet...

UBUNTU-CVE-2026-63362

An unsigned integer underflow in the PubSub signature verification path in open62541 may allow a remote attacker to cause a denial of service via a crafted UDP packet...

CVE-2026-63362 o6 Automation open62541 Integer Underflow

An unsigned integer underflow in the PubSub signature verification path in open62541 may allow a remote attacker to cause a denial of service via a crafted UDP packet...

CVE-2026-63362

The CVE-2026-63362 entry concerns an unsigned integer underflow in the open62541 PubSub signature verification path, which may let a remote attacker cause a denial of service via a crafted UDP packet. Affected component is the signature verification logic within PubSub of open62541. The root caus...