CVE-2026-54736

Phalcon is a high-performance, full-stack PHP framework. Prior to 5.14.1, Phalcon\Encryption\Crypt::decrypt compares the attacker-supplied HMAC tag against the freshly computed HMAC using PHP/Zephir identity comparison, which lowers to a byte-wise comparison that returns early on the first...

CVE-2026-14482 多说社会化评论框 <= 1.2 - Unauthenticated Privilege Escalation via api.php 'option'/'value' Parameters

The 多说社会化评论框 plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.2. The vulnerability exists due to a missing capability and nonce check on a directly web-accessible API endpoint, combined with a trivially forgeable HMAC-SHA1 signature keyed on an...

python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens

A flaw was found in PyJWT, a Python library for JSON Web Token JWT implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys JWK in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer's public key as the...

python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens

A flaw was found in PyJWT, a Python library for JSON Web Token JWT implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys JWK in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer's public key as the...

python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens

A flaw was found in PyJWT, a Python library for JSON Web Token JWT implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys JWK in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer's public key as the...

CVE-2026-58426 Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write

Gitea Actions Artifacts V4 signed URL HMAC ambiguity allows cross-repository artifact read and cross-task upload-state write...

CVE-2026-58426

The CVE-2026-58426 affects Gitea, specifically the Actions Artifacts V4 signed URL mechanism, where an HMAC ambiguity enables cross-repository artifact read and cross-task upload-state write. The vulnerability stems from how signed URLs are validated, allowing unauthorized access across repositor...

GHSA-GG9X-QCX2-XMRH joserfc: HS256/HS384/HS512 verify accepts empty/nil HMAC key (cross-language sibling of CVE-2026-45363)

Summary joserfc.jwt.decode accepts attacker-forged HMAC-signed tokens when the caller-supplied verification key is the empty string or None. HMACAlgorithm.sign and HMACAlgorithm.verify in src/joserfc/rfc7518/jwsalgs.py:62-70 feed whatever OctKey.getopkey... produced into hmac.new..., and...

PT-2026-55459

Name of the Vulnerable Software and Affected Versions joserfc versions 1.6.7 and earlier Description An authentication bypass exists when the verification key provided to joserfc.jwt.decode is an empty string or None. This occurs because the HMACAlgorithm.verify and HMACAlgorithm.sign functions...

python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens

A flaw was found in PyJWT, a Python library for JSON Web Token JWT implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys JWK in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer's public key as the...

python-pyjwt: PyJWT: Authentication bypass due to forged JSON Web Tokens

A flaw was found in PyJWT, a Python library for JSON Web Token JWT implementation. When decoding JWTs, the library fails to validate the use of JSON Web Keys JWK in the HMAC algorithm while also supporting asymmetric algorithms. This allows a remote attacker to use the issuer's public key as the...

Linux Distros Unpatched Vulnerability : CVE-2026-8720

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wcBlake2bHmacFinal and wcBlake2sHmacFinal discard the message when the key length exceeds the block size, producing a MAC that is independent of the input. When...

Linux Distros Unpatched Vulnerability : CVE-2026-6331

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - HMAC zero-length tag forgery in EVPDigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility...

CVE-2026-41896

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, the HMAC key is the application's manualwebhooksecretgithub field, which is used by Coolify's webhook endpoints to validate incoming requests, is nullable with no default —...

CVE-2026-57997 Strapi users-permissions - JWT Algorithm Confusion via Missing Algorithm Configuration

Strapi users-permissions plugin fails to restrict JWT algorithms when plugin::users-permissions.jwt.algorithm is not explicitly configured, allowing acceptance of HS384 and HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass...

CVE-2026-57997 Strapi users-permissions - JWT Algorithm Confusion via Missing Algorithm Configuration

Strapi users-permissions plugin fails to restrict JWT algorithms when plugin::users-permissions.jwt.algorithm is not explicitly configured, allowing acceptance of HS384 and HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass...

CVE-2026-41896 Coolify: Unauthenticated Deployment Trigger via Webhook HMAC Bypass with Null Secret

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, the HMAC key is the application's manualwebhooksecretgithub field, which is used by Coolify's webhook endpoints to validate incoming requests, is nullable with no default —...

CVE-2026-41896

CVE-2026-41896 affects Coolify prior to 4.0.0-beta.474. The HMAC key used to validate webhook requests (manual_webhook_secret_github) is nullable with no default, so new apps have a null secret. PHP’s hash_hmac() coerces a null key to an empty string, causing the server to compute hash_hmac('sha2...

SUSE CVE-2026-53302

In the Linux kernel, the following vulnerability has been resolved: crypto: eip93 - fix hmac setkey algo selection eip93hmacsetkey allocates a temporary ahash transform for computing HMAC ipad/opad key material. The allocation uses the driver-specific cradrivername e.g. "sha256-eip93" but passes...

Updated krb5 packages fix security vulnerabilities

CVE-2025-3576, A vulnerability in the MIT Kerberos implementation allows GSSAPI-protected messages using RC4-HMAC-MD5 to be spoofed due to weaknesses in the MD5 checksum design. If RC4 is preferred over stronger encryption types, an attacker could exploit MD5 collisions to forge message integrity...