CVE-2026-27478 Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

CVE-2026-27478 Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

Use of Hard-coded Credentials

Overview Affected versions of this package are vulnerable to Use of Hard-coded Credentials in the JWKS resolver, which can be exposed if a fetch operation fails. An attacker can obtain private keys by forcing such a failure. Note: The keys are exposed even if RequestAuthentication is in use...

Use of Hard-coded Credentials

Overview Affected versions of this package are vulnerable to Use of Hard-coded Credentials in the JWKS resolver, which can be exposed if a fetch operation fails. An attacker can obtain private keys by forcing such a failure. Note: The keys are exposed even if RequestAuthentication is in use...

PT-2026-24800

Name of the Vulnerable Software and Affected Versions Unity Catalog versions 0.4.0 and earlier Description Unity Catalog is an open, multi-modal Catalog for data and AI. A critical authentication bypass exists in the Unity Catalog token exchange endpoint, /api/1.0/unity-control/auth/tokens. The...

CVE-2026-31837

Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a user of Istio is impacted if the JWKS resolver becomes unavailable or the fetch fails, exposing hardcoded defaults regardless of use of the RequestAuthentication resource. This...

CVE-2026-31837

Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a user of Istio is impacted if the JWKS resolver becomes unavailable or the fetch fails, exposing hardcoded defaults regardless of use of the RequestAuthentication resource. This...

CVE-2026-31837 Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.

Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a user of Istio is impacted if the JWKS resolver becomes unavailable or the fetch fails, exposing hardcoded defaults regardless of use of the RequestAuthentication resource. This...

EUVD-2026-10938

Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a user of Istio is impacted if the JWKS resolver becomes unavailable or the fetch fails, exposing hardcoded defaults regardless of use of the RequestAuthentication resource. This...

CVE-2026-22818

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the algorithm specified in the JWT header to influence signature verification when the selected JWK did not explicitly defi...

CVE-2022-50731

CVE-2022-50731 affects the Linux kernel crypto/akcipher subsystem: the default implementation for setting a private key was removed, along with a default pub-key setter, because some algorithms (e.g., ECDSA) only support verification and lack all callbacks. The patch removes the default set_pub_k...

BIT-ENVOY-2025-64527 Envoy crashes when JWT authentication is configured with the remote JWKS fetching

Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy crashes when JWT authentication is configured with the remote JWKS fetching, allowmissingorfailed is enabled, multiple JWT tokens are present in the request headers and the JWKS fetch...

CVE-2025-64527

Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy crashes when JWT authentication is configured with the remote JWKS fetching, allowmissingorfailed is enabled, multiple JWT tokens are present in the request headers and the JWKS fetch...

Cache Poisoning

get-jwks is vulnerable to cache poisoning. The vulnerability is due to a design flaw where the iss issuer claim may be validated only after keys are retrieved from a shared JWKS cache, which allows an attacker to push a chosen public key into the cache with one crafted JWT and then reuse that...

EUVD-2025-31349

Malicious code in bioql PyPI...

Improper Encoding or Escaping of Output

Overview get-jwks is a Fetch utils for JWKS keys Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output via the JWKS cache process. An attacker can bypass issuer validation by poisoning the cache with keys from an unexpected issuer and subsequently leveraging...

CVE-2025-59936 get-jwks poisoned JWKS cache allows post-fetch issuer validation bypass

get-jwks contains fetch utils for JWKS keys. In versions prior to 11.0.2, a vulnerability in get-jwks can lead to cache poisoning in the JWKS key-fetching mechanism. When the iss issuer claim is validated only after keys are retrieved from the cache, it is possible for cached keys from an...

get-jwks: poisoned JWKS cache allows post-fetch issuer validation bypass

Summary A vulnerability in get-jwks can lead to cache poisoning in the JWKS key-fetching mechanism. Details When the iss issuer claim is validated only after keys are retrieved from the cache, it is possible for cached keys from an unexpected issuer to be reused, resulting in a bypass of issuer...

PT-2025-39697

Name of the Vulnerable Software and Affected Versions get-jwks versions prior to 11.0.2 Description A flaw exists in the get-jwks library related to its JWKS key-fetching mechanism. When the issuer iss claim is validated after keys are retrieved from the cache, cached keys from an unexpected issu...

JWK Set 安全漏洞

JWK Set is a JWK and JWK-Set implementation by the individual developer Micah Parks. An auto-caching JWK-Set HTTP client is provided. A security vulnerability exists in versions prior to JWK Set 0.6.0, which stems from an HTTP client that incorrectly overwrites or appends the local cache when...