44 matches found
CVE-2026-45363
ruby-jwt is a Ruby implementation of the RFC 7519 OAuth JSON Web Token standard. Prior to 2.10.3 and 3.2.0, JWT.decodetoken, '', true, algorithm: 'HS256' accepts an attacker-forged token because OpenSSL::HMAC.digest'SHA256', '', payload returns a valid digest under an empty key and no empty-key...
joserfc: HS256/HS384/HS512 verify accepts empty/nil HMAC key (cross-language sibling of CVE-2026-45363)
Summaryjoserfc.jwt.decode accepts attacker-forged HMAC-signed tokens when thecaller-supplied verification key is the empty string or None.HMACAlgorithm.sign and HMACAlgorithm.verify insrc/joserfc/rfc7518/jwsalgs.py:62-70 feed whateverOctKey.getopkey... produced into hmac.new..., and...
OPENSUSE-SU-2026:21263-1 Security update for python-joserfc
This update for python-joserfc fixes the following issues: Changes in python-joserfc: - CVE-2026-49852: HS256/HS384/HS512 verify accepts empty/nil HMAC key bsc1270234...
SUSE SLED15 / SLES15 Security Update : python-PyJWT (SUSE-SU-2026:2626-1)
The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2626-1 advisory. This update for python-PyJWT fixes the following issues - CVE-2026-48522: PyJWKClient passes URI arguments...
SUSE-SU-2026:2626-1 Security update for python-PyJWT
This update for python-PyJWT fixes the following issues - CVE-2026-48522: PyJWKClient passes URI arguments directly to urllib.request.urlopen and allows for SSRF and token forgery bsc1266798. - CVE-2026-48523: verifier-side algorithm allow-list bypass when jwt.decode or jwt.decodecomplete are...
SUSE-SU-2026:22170-1 Security update for python-PyJWT
This update for python-PyJWT fixes the following issues - CVE-2026-48522: PyJWKClient passes URI arguments directly to urllib.request.urlopen and allows for SSRF and token forgery bsc1266798. - CVE-2026-48523: verifier-side algorithm allow-list bypass when jwt.decode or jwt.decodecomplete are...
CVE-2026-48526
PyJWT (Python) prior to 2.13.0 did not validate the use of JSON Web Keys in HMAC verification, allowing an attacker to use the issuer public key as the HMAC secret during token verification. This could enable forging tokens when mixing RS/EC/JWK and HS algorithms. The issue is fixed in PyJWT 2.13...
CVE-2026-48526 PyJWT: Public-key JWK accepted as HMAC secret enables forged HS256 tokens when mixed families are allowed
PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, when the verifier is decoding JSON Web Tokens, while supporting both asymmetric and HMAC algorithms, the library does not validate use of JSON Web Keys in HMAC algorithm, allowing attacker to use the issuer public key as the...
GHSA-C32J-VQHX-RX3X ruby-jwt: Empty-key HMAC bypass; cross-language sibling of CVE-2026-44351
JWT.decodetoken, '', true, algorithm: 'HS256' accepts an attacker-forged token. OpenSSL::HMAC.digest'SHA256', '', payload returns a valid digest under an empty key, and no raise InvalidKeyError if key.empty? precondition exists in the HMAC algorithm. JWT.decodetoken, "", true, algorithm: 'HS256' ...
ruby-jwt: Empty-key HMAC bypass; cross-language sibling of CVE-2026-44351
JWT.decodetoken, '', true, algorithm: 'HS256' accepts an attacker-forged token. OpenSSL::HMAC.digest'SHA256', '', payload returns a valid digest under an empty key, and no raise InvalidKeyError if key.empty? precondition exists in the HMAC algorithm. JWT.decodetoken, "", true, algorithm: 'HS256' ...
GHSA-Q6MH-RQWH-G786 Note Mark has a JWT Secret Weakness that allows Full Account Takeover via Token Forgery
Summary No minimum length or entropy is enforced on the JWTSECRET configuration value. The application accepts any base64-decodable secret regardless of size, including secrets as short as 1 byte. HS256 secrets below 32 bytes are brute-forceable offline, allowing attackers to recover the signing...
fast-jwt: Incomplete fix for CVE-2023-48223: JWT Algorithm Confusion via Whitespace-Prefixed RSA Public Key
Summary The fix for GHSA-c2ff-88x2-x9pg CVE-2023-48223 is incomplete. The publicKeyPemMatcher regex in fast-jwt/src/crypto.js uses a ^ anchor that is defeated by any leading whitespace in the key string, re-enabling the exact same JWT algorithm confusion attack that the CVE patched. Details The f...
Improper Verification of Cryptographic Signature
Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to improper validation of the crit header parameter. An attacker can bypass critical header checks by crafting a JSON Web Signature JWS token with unrecognized critical extensions. Po...
Security Bulletin: auth0/node-jws HS256 signature verification bypass via improper HMAC secret handling (≤3.2.2, 4.0.0)
Summary auth0/node-jws HS256 signature verification bypass due to improper HMAC secret handling versions ≤ 3.2.2 and 4.0.0 Vulnerability Details CVEID:CVE-2025-65945 DESCRIPTION: auth0/node-jws is a JSON Web Signature implementation for Node.js. In versions 3.2.2 and earlier and version 4.0.0,...
Security Bulletin: IBM Edge Data Collector uses jws-3.2.2.tgz which are vulnerable to CVE-2025-65945.
Summary IBM Edge Data Collector uses jws-3.2.2.tgz which are vulnerable to CVE-2025-65945. This bulletin contains information regarding the vulnerability and its fixture. Vulnerability Details CVEID:CVE-2025-65945 DESCRIPTION: auth0/node-jws is a JSON Web Signature implementation for Node.js. In...
CVE-2025-65945 auth0/node-jws improper HMAC signature verification vulnerability
auth0/node-jws is a JSON Web Signature implementation for Node.js. In versions 3.2.2 and earlier and version 4.0.0, auth0/node-jws has an improper signature verification vulnerability when using the HS256 algorithm under specific conditions. Applications are affected when they use the...
CVE-2025-65945 auth0/node-jws improper HMAC signature verification vulnerability
auth0/node-jws is a JSON Web Signature implementation for Node.js. In versions 3.2.2 and earlier and version 4.0.0, auth0/node-jws has an improper signature verification vulnerability when using the HS256 algorithm under specific conditions. Applications are affected when they use the...
PT-2025-49117
Name of the Vulnerable Software and Affected Versions auth0/node-jws versions 3.2.2 and earlier auth0/node-jws version 4.0.0 Description auth0/node-jws is a JSON Web Signature implementation for Node.js. A flaw exists in signature verification when using the HS256 algorithm under specific...
node-jws 数据伪造问题漏洞
node-jws is a JSON Web signature library open-sourced by Auth0. A data forgery issue vulnerability exists in node-jws versions 3.2.2 and earlier and 4.0.0, which stems from improper HS256 algorithm signature validation and could lead to signature validation bypass...
