Authentication Bypass

github.com/envoyproxy/gateway is vulnerable to Authentication Bypass. The vulnerability is due to missing authentication checks for unary xDS RPCs and improper JWT validation for State-of-the-World discovery requests, which allows an attacker with network access to the xDS server to bypass...

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...

Important: Red Hat Security Advisory: Satellite 6.16.12 Async Update

An update is now available for Red Hat Satellite 6.16 for RHEL 8 and RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

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...

Important: Red Hat Security Advisory: Satellite 6.17.10 Async Update

A new release is now available for Red Hat Satellite 6.17 for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

CLSA-2026-1774657370 TuxCare security update for jsonwebtoken (2 CVEs)

TuxCare rebuilt jsonwebtoken to address 2 CVEs. Fixed in 0.4.0-tuxcare.1...

CVE-2026-48031

Technical details about CVE-2026-48031 are not publicly provided in the supplied documents. The go-base JWT-secret issue is described at a high level; monitor for updates for concrete affected versions, root cause, and fixes.

CVE-2026-68581 Vikunja 0.22.0 through 2.3.0 Authentication Bypass via Principal ID Collision

Vikunja versions 0.22.0 through 2.3.0 fail to validate the principal type in API token management. Because user IDs and link-share IDs are independent numeric sequences and both resolve through a generic web.Auth.GetID interface, a link-share JWT whose numeric ID equals a target user's ID is...

CVE-2026-8457

The WooCommerce - Social Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to and including 2.8.7. This is due to the plugin's Apple login handler accepting the Apple idtoken and decoding only its base64 payload without verifying the JWT signature against Apple'...

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...

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

Summary 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...

PT-2026-67342

The WooCommerce - Social Login plugin for WordPress is vulnerable to Authentication Bypass in all versions up to and including 2.8.7. This is due to the plugin's Apple login handler accepting the Apple id token and decoding only its base64 payload without verifying the JWT signature against Apple...

CVE-2026-18208

Affected product: Keycloak (keycloak-services OIDC token introspection endpoint). Issue: when a confidential client that expects signed JWT introspection responses inspects a token issued for a different audience, the endpoint still returns the full set of token claims inside a signed JWT field e...

CVE-2026-18208 Keycloak-services: keycloak-services: inactive out-of-audience token introspection leaks signed jwt claim

A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when a confidential client, configured to receive signed JWT...

PT-2026-66724

A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when a confidential client, configured to receive signed JWT...

SUSE CVE-2026-55669

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

CVE-2026-53431

Authentication Bypass by Capture-replay vulnerability in malach-it Boruta allows an attacker who has obtained a previously valid JWT client assertion to authenticate as the issuing OAuth client after the assertion has expired. Boruta accepts JWT-based client authentication clientsecretjwt and...

EUVD-2026-51145

Authentication Bypass by Capture-replay vulnerability in malach-it Boruta allows an attacker who has obtained a previously valid JWT client assertion to authenticate as the issuing OAuth client after the assertion has expired. Boruta accepts JWT-based client authentication clientsecretjwt and...

CVE-2026-53431 Boruta accepts expired JWT client assertions due to missing exp claim validation

Authentication Bypass by Capture-replay vulnerability in malach-it Boruta allows an attacker who has obtained a previously valid JWT client assertion to authenticate as the issuing OAuth client after the assertion has expired. Boruta accepts JWT-based client authentication clientsecretjwt and...

CVE-2026-53431 Boruta accepts expired JWT client assertions due to missing exp claim validation

Authentication Bypass by Capture-replay vulnerability in malach-it Boruta allows an attacker who has obtained a previously valid JWT client assertion to authenticate as the issuing OAuth client after the assertion has expired. Boruta accepts JWT-based client authentication clientsecretjwt and...