GHSA-6765-C87H-8MRF Traefik: BasicAuth singleflight key collision allows authenticated identity spoofing

Summary There is a low severity vulnerability in Traefik's BasicAuth middleware. Concurrent password verifications are deduplicated through a singleflight group whose key was the delimiter-free concatenation of the submitted password and the stored secret, so a request carrying an unconfigured...

Traefik: BasicAuth singleflight key collision allows authenticated identity spoofing

Summary There is a low severity vulnerability in Traefik's BasicAuth middleware. Concurrent password verifications are deduplicated through a singleflight group whose key was the delimiter-free concatenation of the submitted password and the stored secret, so a request carrying an unconfigured...

EUVD-2026-54297

Traefik is an open source HTTP reverse proxy and load balancer. From 3.6.11 until 3.6.25 and 3.7.10, Traefik's BasicAuth middleware in pkg/middlewares/auth/basicauth.go deduplicates concurrent password checks with a singleflight key built from the delimiter-free concatenation of password and...

undici: undici: Cross-user information disclosure due to improper Cache-Control directive parsing

A flaw was found in undici. The cache interceptor in undici improperly handles optional whitespace around the equals sign in no-cache or private Cache-Control directives. This vulnerability allows an attacker to bypass cache restrictions, leading to cross-user information disclosure. Specifically...

CVE-2026-66922 Pivotick Prototype-Key Collision in Tree Layout and Cycle Detection Allows Graph Manipulation and Denial of Service

Pivotick used plain JavaScript objects as lookup tables indexed by caller-controlled graph node identifiers in its tree-layout and cycle-detection components. Node identifiers matching properties inherited from Object.prototype, such as constructor, toString, or proto, were not handled as ordinar...

CVE-2026-66922 Pivotick Prototype-Key Collision in Tree Layout and Cycle Detection Allows Graph Manipulation and Denial of Service

Pivotick used plain JavaScript objects as lookup tables indexed by caller-controlled graph node identifiers in its tree-layout and cycle-detection components. Node identifiers matching properties inherited from Object.prototype, such as constructor, toString, or proto, were not handled as ordinar...

CVE-2026-66922

Pivotick CVE-2026-66922 affects the tree-layout and cycle-detection code by using plain JavaScript objects as lookup tables indexed with node identifiers that can collide with Object.prototype properties (e.g., constructor, toString, proto ). This can cause inherited-property confusion, wrong typ...

PYSEC-2026-3468 GPTCache: File and image cache keys collide because BufferedReader.peek() only reads the buffered prefix

A vulnerability was detected in zilliztech GPTCache up to 0.1.44. Affected by this issue is the function BufferedReader.peek of the file gptcache/processor/pre.py of the component Cache Key Handler. Performing a manipulation of the argument inputdata"image" results in use of weak hash. The attack...

Improper Encoding or Escaping of Output

Overview next is a react framework. Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output via the IncrementalCache.generateCacheKey function in next/dist/server/lib/incremental-cache. An attacker can make a server-side fetch return a cached response body from...

CVE-2026-16158 @fastify/reply-from vulnerable to cross-upstream request routing via URL cache key collision

Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URL...

CVE-2026-16158 @fastify/reply-from vulnerable to cross-upstream request routing via URL cache key collision

Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URL...

undici: Undici: Information disclosure due to improper cache-control header parsing

A flaw was found in Undici. The cache interceptor in shared-cache mode incorrectly classifies certain responses as cacheable due to improper handling of whitespace-padded Cache-Control header field names. This vulnerability allows an unauthenticated attacker to access authenticated user data from...

undici: Undici: Information disclosure due to improper cache-control header parsing

A flaw was found in Undici. The cache interceptor in shared-cache mode incorrectly classifies certain responses as cacheable due to improper handling of whitespace-padded Cache-Control header field names. This vulnerability allows an unauthenticated attacker to access authenticated user data from...

undici: Undici: Information disclosure due to improper cache-control header parsing

A flaw was found in Undici. The cache interceptor in shared-cache mode incorrectly classifies certain responses as cacheable due to improper handling of whitespace-padded Cache-Control header field names. This vulnerability allows an unauthenticated attacker to access authenticated user data from...

undici: Undici: Information disclosure due to improper cache-control header parsing

A flaw was found in Undici. The cache interceptor in shared-cache mode incorrectly classifies certain responses as cacheable due to improper handling of whitespace-padded Cache-Control header field names. This vulnerability allows an unauthenticated attacker to access authenticated user data from...

Authorization Bypass Through User-Controlled Key

Overview langgraph is a Building stateful, multi-actor applications with LLMs Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key due to a key collision in the defaultcachekey and freeze functions of langgraph/internal/cache.py, where freeze reduce...

PT-2026-54774

Name of the Vulnerable Software and Affected Versions Centrifugo affected versions not specified Description Centrifugo contains a cross-tenant JWT authentication bypass when using dynamic JWKS JSON Web Key Set endpoints. The issue occurs because the JWKS cache and singleflight lookup are keyed...

PYSEC-2026-390 LiteLLM: Authentication bypass via OIDC userinfo cache key collision

Impact When JWT authentication is enabled enablejwtauth: true, the OIDC userinfo cache uses token:20 as the cache key. JWT headers produced by the same signing algorithm generate identical first 20 characters. This configuration option is not enabled by default. Most instances are not affected. A...

GO-2026-5483 OpenFGA's BatchCheck within-request deduplication produces incorrect authorization decisions via list-value cache-key collision in github.com/openfga/openfga

OpenFGA's BatchCheck within-request deduplication produces incorrect authorization decisions via list-value cache-key collision in github.com/openfga/openfga...

Node.js: HTTPS Agent PFX object-array key collision allows mTLS client identity reuse across different per-request certificates

A flaw in Node.js HTTPS Agent connection reuse was discovered that could cause PFX object-array key collisions, allowing mutual TLS mTLS client identities to be reused across requests configured with different client certificates. This vulnerability affected Node.js versions 26.x, 24.x, and 22.x...