VYPR

CWE-347

Improper Verification of Cryptographic Signature

BaseDraft

Description

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Hierarchy (View 1000)

Parents

Children

none

Related attack patterns (CAPEC)

CAPEC-463 · CAPEC-475

CVEs mapped to this weakness (803)

page 5 of 41
  • CVE-2025-54419CriJul 28, 2025
    risk 0.58cvss 10.0epss 0.00

    A SAML library not dependent on any frameworks that runs in Node. In version 5.0.1, Node-SAML loads the assertion from the (unsigned) original response document. This is different than the parts that are verified when checking signature. This allows an attacker to modify…

  • CVE-2025-25291CriMar 12, 2025
    risk 0.58cvss 9.8epss 0.20

    ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently; the parsers can…

  • CVE-2023-25574CriFeb 25, 2025
    risk 0.58cvss 10.0epss 0.00

    `jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI). LTI13Authenticator that was introduced in `jupyterhub-ltiauthenticator` 1.3.0 wasn't validating JWT signatures. This is believed to allow the LTI13Authenticator to authorize a…

  • CVE-2024-32962CriMay 2, 2024
    risk 0.58cvss 10.0epss 0.01

    xml-crypto is an xml digital signature and encryption library for Node.js. In affected versions the default configuration does not check authorization of the signer, it only checks the validity of the signature per section 3.2.2 of the w3 xmldsig-core-20080610 spec. As such,…

  • CVE-2026-18108CriAug 3, 2026
    risk 0.57cvss 9.8epss 0.00

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

  • CVE-2025-41669HigMay 27, 2026
    risk 0.57cvss 8.8epss 0.00

    The Web-based Management allows a remote low privileged Engineer user to install additional APPs on the device downloaded from the PLCnext Store without implementing any data verification mechanism, leading to the capability for an Engineer user to reach arbitrary code execution…

  • CVE-2026-6911CriApr 24, 2026
    risk 0.57cvss 9.8epss 0.00

    Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user…

  • CVE-2026-33746CriApr 2, 2026
    risk 0.57cvss 9.8epss 0.00

    Convoy is a KVM server management panel for hosting businesses. From version 3.9.0-beta to before version 4.5.1, the JWTService::decode() method did not verify the cryptographic signature of JWT tokens. While the method configured a symmetric HMAC-SHA256 signer via lcobucci/jwt,…

  • CVE-2026-31946CriMar 30, 2026
    risk 0.57cvss 9.8epss 0.00

    OpenOlat is an open source web-based e-learning platform for teaching, learning, assessment and communication. From version 10.5.4 to before version 20.2.5, OpenOLAT's OpenID Connect implicit flow implementation does not verify JWT signatures. The JSONWebToken.parse() method…

  • CVE-2026-3562HigMar 16, 2026
    risk 0.57cvss 8.8epss 0.00

    Philips Hue Bridge hk_hap Ed25519 Signature Verification Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Authentication is not required to exploit this…

  • CVE-2026-28802CriMar 6, 2026
    risk 0.57cvss 9.8epss 0.00

    Authlib is a Python library which builds OAuth and OpenID Connect servers. From version 1.6.5 to before version 1.6.7, previous tests involving passing a malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to…

  • CVE-2026-25922HigFeb 12, 2026
    risk 0.57cvss 8.8epss 0.00

    authentik is an open-source identity provider. Prior to 2025.8.6, 2025.10.4, and 2025.12.4, when using a SAML Source that has the option Verify Assertion Signature under Verification Certificate enabled and not Verify Response Signature, or does not have the Encryption…

  • CVE-2026-23687HigFeb 10, 2026
    risk 0.57cvss 8.8epss 0.00

    SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity information, unauthorized…

  • CVE-2026-23518CriJan 21, 2026
    risk 0.57cvss 9.8epss 0.00

    Fleet is open source device management software. In versions prior to 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3, a vulnerability in Fleet's Windows MDM enrollment flow could allow an attacker to submit forged authentication tokens that are not properly validated. Because JWT…

  • CVE-2025-9485CriOct 4, 2025
    risk 0.57cvss 9.8epss 0.01

    The OAuth Single Sign On – SSO (OAuth Client) plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 6.26.12. This is due to the plugin performing unsafe JWT token processing without verification or validation…

  • CVE-2025-30064HigAug 27, 2025
    risk 0.57cvss epss 0.00

    An insufficiently secured internal function allows session generation for arbitrary users. The decodeParam function checks the JWT but does not verify which signing algorithm was used. As a result, an attacker can use the "ex:action" parameter in the VerifyUserByThrustedService…

  • CVE-2025-40758HigAug 14, 2025
    risk 0.57cvss 8.7epss 0.00

    A vulnerability has been identified in Mendix SAML (Mendix 10.12 compatible) (All versions < V4.0.3), Mendix SAML (Mendix 10.21 compatible) (All versions < V4.1.2), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.21). Affected versions of the module insufficiently…

  • CVE-2025-2233HigMar 11, 2025
    risk 0.57cvss 8.8epss 0.01

    Samsung SmartThings Improper Verification of Cryptographic Signature Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Samsung SmartThings. Authentication is not required to exploit…

  • CVE-2025-23369HigJan 21, 2025
    risk 0.57cvss 8.8epss 0.02

    An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Instances not utilizing SAML single sign-on or where the attacker is not already an existing user were…

  • CVE-2024-22461HigDec 13, 2024
    risk 0.57cvss 8.8epss 0.01

    Dell RecoverPoint for Virtual Machines 6.0.x contains an OS Command injection vulnerability. A low privileged remote attacker could potentially exploit this vulnerability by running any command as root, leading to gaining of root-level access and compromise of complete system.