PYSEC-2026-2603 Litestar: AllowedHostsMiddleware bypasses host validation via client-controlled X-Forwarded-Host header

Summary AllowedHostsMiddleware trusts the X-Forwarded-Host header as a fallback when the Host header is absent. Since X-Forwarded-Host is a client-controllable header, an attacker can bypass the allowed hosts validation by omitting the Host header and supplying an X-Forwarded-Host header set to a...

PYSEC-2026-3439 zeroconf has unbounded DNS record cache that allows LAN-local memory exhaustion via multicast flood

Impact DNSCache.asyncadd inserted every response record into cache, expirations, expireheap, and servicecache with no cap on entry count. The only pre-existing protection was a PTR TTL floor DNSPTRMINTTL = 1125 s, RFC 6762 §10, which actually prolonged attacker-injected records, and a periodic...

zeroconf has unbounded DNS record cache that allows LAN-local memory exhaustion via multicast flood

ImpactDNSCache.asyncadd inserted every response record into cache, expirations, expireheap, and servicecache with no cap on entry count. The only pre-existing protection was a PTR TTL floor DNSPTRMINTTL = 1125 s, RFC 6762 §10, which actually prolonged attacker-injected records, and a periodic...

compliance-trestle Vulnerable to SSRF in Remote Fetching Subsystem

A source code audit led to the discovery of three significant security vulnerabilities in the trestle/core/remote/cache.py module.Finding 1 Critical: SSRF CWE-918The HTTPSFetcher.dofetch method passes a user-supplied URL directly to requests.get without validation. This allows an attacker to...

compliance-trestle Remote Fetching Mechanism has an Arbitrary File Write via Cache Path Traversal

SummaryThe compliance-trestle library's remote fetching cache mechanism HTTPSFetcher and SFTPFetcher constructs the local cache file path from the URL path component without sanitizing path traversal sequences ../. When a remote OSCAL profile references a URL with traversal in its path, the HTTP...

PYSEC-2026-2424 compliance-trestle Remote Fetching Mechanism has an Arbitrary File Write via Cache Path Traversal

Summary The compliance-trestle library's remote fetching cache mechanism HTTPSFetcher and SFTPFetcher constructs the local cache file path from the URL path component without sanitizing path traversal sequences ../. When a remote OSCAL profile references a URL with traversal in its path, the HTTP...

Open WebUI has stored XSS via attacker-controlled file extension in /api/v1/audio/transcriptions

Summary The audio transcription upload endpoint takes the file extension from the user-supplied filename and saves the file under CACHEDIR/audio/transcriptions/.. The /cache/path route serves these files via FileResponse, which sets Content-Type from the on-disk extension and emits no...

Open WebUI: Redis Cache Keys tool_servers and terminal_servers Missing Instance Prefix Enable Cross-Instance Cache Poisoning

Redis Cache Keys toolservers and terminalservers Missing Instance Prefix Enable Cross-Instance Cache Poisoning Affected ComponentTool server and terminal server Redis cache:- backend/openwebui/utils/tools.py line 841, toolservers SET- backend/openwebui/utils/tools.py line 850, toolservers GET-...

PYSEC-2026-2387 AWS Encryption SDK for Python: Key commitment policy bypass via shared key cache

Summary AWS Encryption SDK ESDK for Python is a client-side encryption library. An issue exists where, under certain circumstances, a specific cryptographic algorithm downgrade in the caching layer might allow an authenticated local threat actor to bypass key commitment policy enforcement via a...

AWS Encryption SDK for Python: Key commitment policy bypass via shared key cache

SummaryAWS Encryption SDK ESDK for Python is a client-side encryption library. An issue exists where, under certain circumstances, a specific cryptographic algorithm downgrade in the caching layer might allow an authenticated local threat actor to bypass key commitment policy enforcement via a...

PraisonAI: Coarse-Grained Tool Approval Cache Bypasses Per-Invocation Consent for Shell Commands

SummaryThe approval system in PraisonAI Agents caches tool approval decisions by tool name only, not by invocation arguments. Once a user approves executecommand for any command e.g., ls -la, all subsequent executecommand calls in that execution context bypass the approval prompt entirely. Combin...

PYSEC-2026-2946 PraisonAI: Coarse-Grained Tool Approval Cache Bypasses Per-Invocation Consent for Shell Commands

Summary The approval system in PraisonAI Agents caches tool approval decisions by tool name only, not by invocation arguments. Once a user approves executecommand for any command e.g., ls -la, all subsequent executecommand calls in that execution context bypass the approval prompt entirely...

Django has a Race Condition vulnerability

An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.12, and 4.2 before 4.2.29.Race condition in file-system storage and file-based cache backends in Django allows an attacker to cause file system objects to be created with incorrect permissions via concurrent requests, where one thread's...

PYSEC-2026-2449 Django has a Race Condition vulnerability

An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.12, and 4.2 before 4.2.29. Race condition in file-system storage and file-based cache backends in Django allows an attacker to cause file system objects to be created with incorrect permissions via concurrent requests, where one thread's...

LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution

ContextA Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from BaseCache and opt nodes into caching via CachePolicy. Prior to langgraph-checkpoint 4.0.0, BaseCache defaults to JsonPlusSerializerpicklefallback=True. When...

PYSEC-2026-3418 wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data

Summary Five routine detail action endpoints check a cache before calling self.getobject. Cache keys are scoped only by pk — no user ID is included. When a victim has previously accessed their routine via the API, an attacker can retrieve the cached response for the same PK without any ownership...

PYSEC-2026-2574 LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution

Context A Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from BaseCache and opt nodes into caching via CachePolicy. Prior to langgraph-checkpoint 4.0.0, BaseCache defaults to JsonPlusSerializerpicklefallback=True. When...

wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data

SummaryFive routine detail action endpoints check a cache before calling self.getobject. Cache keys are scoped only by pk — no user ID is included. When a victim has previously accessed their routine via the API, an attacker can retrieve the cached response for the same PK without any ownership...

datapizza-ai has unsafe deserialization via pickle.loads() in RedisCache

A vulnerability has been found in datapizza-labs datapizza-ai 0.0.7. Affected by this vulnerability is the function RedisCache of the file datapizza-ai-cache/redis/datapizza/cache/redis/cache.py. Such manipulation leads to deserialization. The attack requires being on the local network. A high...

PYSEC-2026-2438 datapizza-ai has unsafe deserialization via pickle.loads() in RedisCache

A vulnerability has been found in datapizza-labs datapizza-ai 0.0.7. Affected by this vulnerability is the function RedisCache of the file datapizza-ai-cache/redis/datapizza/cache/redis/cache.py. Such manipulation leads to deserialization. The attack requires being on the local network. A high...