CVE-2026-63761

SurrealDB before 3.1.0 silently substitutes the ES384 algorithm when a JWT access method is configured with ALGORITHM ES512 DEFINE ACCESS ... TYPE JWT ALGORITHM ES512, because the underlying jsonwebtoken crate v10.x has no ES512 variant and the mapping defaults to ES384 without any error, warning...

CVE-2026-63761 SurrealDB before 3.1.0 Algorithm Downgrade via ES512

SurrealDB before 3.1.0 silently substitutes the ES384 algorithm when a JWT access method is configured with ALGORITHM ES512 DEFINE ACCESS ... TYPE JWT ALGORITHM ES512, because the underlying jsonwebtoken crate v10.x has no ES512 variant and the mapping defaults to ES384 without any error, warning...

EUVD-2026-45932

SurrealDB before 3.1.0 silently substitutes the ES384 algorithm when a JWT access method is configured with ALGORITHM ES512 DEFINE ACCESS ... TYPE JWT ALGORITHM ES512, because the underlying jsonwebtoken crate v10.x has no ES512 variant and the mapping defaults to ES384 without any error, warning...

CVE-2026-63761

SurrealDB before 3.1.0 uses JWT ES512 but internally maps to ES384 because jsonwebtoken v10.x has no ES512. This causes authentication handshake failures when a P-521 key for ES512 is used and can lead to tokens being rejected by systems expecting genuine ES512 signatures. The vulnerability descr...

Cisco IOS XE WLC - Arbitrary File Upload

A vulnerability in the Out-of-Band Access Point AP Image Download feature of Cisco IOS XE Software for Wireless LAN Controllers WLCs could allow an unauthenticated, remote attacker to upload arbitrary files to an affected system.This vulnerability is due to the presence of a hard-coded JSON Web...

FUXA <= 1.2.7 - Hardcoded JWT Secret Authentication Bypass

FUXA v1.2.7 contains a hardcoded credentials vulnerability caused by use of a hard-coded secret key in server/api/jwt-helper.js, letting remote attackers forge admin tokens and bypass authentication, exploit requires no special conditions. id: CVE-2025-69971 info: name: FUXA = 1.2.7 - Hardcoded J...

EUVD-2026-45282

IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to read arbitrary files including the JWT signing key and forge authentication tokens for any user...

CVE-2026-49852

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to 1.6.8, joserfc.jwt.decode accepts attacker-forged HMAC-signed tokens when the caller-supplied verification key is the empty string or None, because HMACAlgorithm.sign...

CVE-2026-16093

CVE-2026-16093 affects Keycloak’s Client Policies by allowing bypass of the requirement to use signed JWTs. A flaw lets an attacker with valid client credentials submit a fake, unsigned assertion header, making the system think policy requirements are met and enabling authentication with simpler ...

CVE-2026-16093 Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed with unsigned assertion headers

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned...

CVE-2026-9537 Mojo::JWT versions before 1.02 for Perl verify HMAC signatures with a non-constant-time string comparison

Mojo::JWT versions before 1.02 for Perl verify HMAC signatures with a non-constant-time string comparison. The decode method compares the supplied signature to the recomputed HMAC with Perl's eq operator, which stops at the first differing byte, so the comparison time varies with the number of...

CVE-2026-62386

The Grav API plugin getgrav/grav-plugin-api before 1.0.0-rc.16 accepts JWT access tokens through the ?token= URL query parameter on every API route JwtAuthenticator::extractBearerToken fallback. Because tokens are embedded in URLs, they are logged verbatim in web server access logs, leaked via th...

CVE-2026-49998 Centrifugo: Dynamic JWKS key cache keyed only by `kid` allows cross-issuer JWT authentication bypass

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.1, Centrifugo dynamic JWKS endpoint verification could reuse a key for one allowed issuer to verify a JWT for another allowed issuer because the JWKS cache and singleflight lookup were keyed only by JWT header kid, not...

CVE-2026-53536 Activepieces: Cross-tenant file download via missing JWT audience check on step-files signed URL

Activepieces is an open source AI workflow automation platform. Prior to 0.83.0, the /v1/step-files/signed download endpoint verified the supplied JWT against the shared signing secret but did not check the token's audience, and combined with a missing null-check on the decoded fileId, this allow...

CVE-2026-53536

Activepieces (open source AI workflow automation) exposed a cross-tenant file exposure vulnerability prior to version 0.83.0. The /v1/step-files/signed download endpoint validated the JWT against the shared signing secret but did not check the token’s audience and, due to a missing null-check on ...

CVE-2026-54733

The Moodle integration for Microsoft 365/Entra ID (local_o365) is vulnerable prior to 4.5.6, 5.0.5, and 5.1.1. The Teams SSO endpoint sso_login.php base64-decodes a JWT payload and authenticates users based on the upn claim without verifying the JWT signature, enabling an unauthenticated attacker...

CVE-2026-54733 moodle-local_o365: Authentication bypass via unverified JWT signature in Teams SSO endpoint

The Microsoft 365 and Microsoft Entra ID Plugins for Moodle provide Office 365 and Azure Active Directory integration for Moodle. Prior to 4.5.6, 5.0.5, and 5.1.1, the Microsoft Office 365 Integration plugin localo365 Teams SSO endpoint ssologin.php base64-decodes a JWT payload and authenticates...

EUVD-2026-44841

A flaw was found in Keycloak. When the JSON Web Token JWT authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper...

CVE-2026-1609

CVE-2026-1609 affects Keycloak: when the JWT authorization grant preview feature is enabled and a user is disabled, Keycloak may not validate the user’s disabled status during JWT grant processing. A remote, low-privilege attacker can present an assertion token from an external IdP to obtain a JW...

CVE-2026-1609

A flaw was found in Keycloak. When the JSON Web Token JWT authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper...