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...

LiteLLM: Authentication bypass via OIDC userinfo cache key collision

ImpactWhen 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.An...

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...

CVE-2026-9678

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...

Linux Distros Unpatched Vulnerability : CVE-2026-48096

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenFGA is an authorization/permission engine built for developers. Prior to version 1.16.0, when iterator caching is enabled, two distinct check requests can...

EUVD-2026-36061

OpenFGA has cache-key delimiter injection in shared-iterator and v2 iterator that caches enables intra-store authorization-decision poisoning...

OpenFGA has cache-key delimiter injection in shared-iterator and v2 iterator that caches enables intra-store authorization-decision poisoning

Description In OpenFGA, when iterator caching is enabled, two distinct check requests can produce the same cache key, leading to OpenFGA reusing an earlier cached result for a subsequent request. Preconditions This applies if the following preconditions are present: - FGA runs with...

CVE-2026-48096

OpenFGA is an authorization/permission engine built for developers. Prior to version 1.16.0, when iterator caching is enabled, two distinct check requests can produce the same cache key, leading to OpenFGA reusing an earlier cached result for a subsequent request. This issue has been patched in...

CVE-2026-48096: Insufficient Verification of Data Authenticity

OpenFGA is an authorization/permission engine built for developers. Prior to version 1.16.0, when iterator caching is enabled, two distinct check requests can produce the same cache key, leading to OpenFGA reusing an earlier cached result for a subsequent request. This issue has been patched in...

PT-2026-48462

Name of the Vulnerable Software and Affected Versions OpenFGA versions prior to 1.16.0 Description When iterator caching is enabled, specifically with SharedIteratorCache and ListObjectsIteratorCache, two distinct check requests can produce the same cache key. This causes the system to reuse a...

CVE-2026-39972

Mercure is a protocol for pushing data updates to web browsers and other HTTP clients in a battery-efficient way. Prior to 0.22.0, a cache key collision vulnerability in TopicSelectorStore allows an attacker to poison the match result cache, potentially causing private updates to be delivered to...

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...

GHSA-XFQJ-4CR9-9GR5 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...

CVE-2026-30246

Fiber is a web framework for Go. In github.com/gofiber/fiber/v3 versions through 3.1.0, the default key generator in the cache middleware uses only the request path and does not include the query string. As a result, requests for the same path with different query parameters can share a cache key...

CVE-2026-41131

A flaw was found in OpenFGA, an authorization and permission engine. When certain authorization models use conditions with caching enabled, the system can incorrectly generate the same cache key for different requests. This error causes OpenFGA to reuse an outdated authorization decision,...

CVE-2026-41131: Incorrect Authorization

OpenFGA is an authorization/permission engine built for developers. Prior to version 1.14.1, in specific scenarios, models using conditions with caching enabled can result in two different check requests producing the same cache key. This could result in OpenFGA reusing an earlier cached result f...

CVE-2026-39972

Mercure is a protocol for pushing data updates to web browsers and other HTTP clients in a battery-efficient way. Prior to 0.22.0, a cache key collision vulnerability in TopicSelectorStore allows an attacker to poison the match result cache, potentially causing private updates to be delivered to...

CVE-2026-39972 Mercure has a Topic Selector Cache Key Collision

Mercure is a protocol for pushing data updates to web browsers and other HTTP clients in a battery-efficient way. Prior to 0.22.0, a cache key collision vulnerability in TopicSelectorStore allows an attacker to poison the match result cache, potentially causing private updates to be delivered to...

CVE-2026-39972

CVE-2026-39972 affects Mercure prior to 0.22.0. A cache key collision in TopicSelectorStore arises from concatenating topicSelector and topic with an underscore, which can produce identical keys for different pairs because both fields may contain underscores. An attacker who can subscribe or publ...