social-auth-core has an Improper Authentication issue

ImpactThe SAML backend accepted SAML responses on the Assertion Consumer Service endpoint without verifying that they matched a previously issued AuthnRequest.Applications using SAML account association could allow an attacker with a valid account on a trusted IdP to link the attacker's SAML...

Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

SummaryDecepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

Mesop: Unauthenticated ANSI Escape Sequence Injection in CSP Reporting Endpoint

SummaryThe /csp endpoint accepts unauthenticated JSON reports and logs user-controlled values directly to stdout using print without escaping control characters.A remote attacker can include ANSI/VT100 escape sequences in fields such as blocked-uri or document-uri. When the logs are viewed in an...

PYSEC-2026-4032 Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

Summary Decepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

PYSEC-2026-4033 Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

Summary Decepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

PYSEC-2026-4105 Mesop: Unauthenticated ANSI Escape Sequence Injection in CSP Reporting Endpoint

Summary The /csp endpoint accepts unauthenticated JSON reports and logs user-controlled values directly to stdout using print without escaping control characters. A remote attacker can include ANSI/VT100 escape sequences in fields such as blocked-uri or document-uri. When the logs are viewed in a...

Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

SummaryDecepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

lightrag-hku: No Rate Limiting on /login Endpoint Allows Brute-Force Attacks

SummaryThe POST /login endpoint has no rate limiting, account lockout, or delay on failed attempts. An attacker can submit unlimited password guesses at full network speed. Detailspython lightrag/api/lightragserver.py:[email protected]"/login"async def loginformdata: OAuth2PasswordRequestForm =...

lightrag-hku: SSRF via IPv6-transition address bypass (NAT64, IPv4-compatible, 6to4) of the native-markdown image-download guard

SummaryLightRAG's native markdown parser downloads external images referenced by an uploaded markdown or textpack document. The only SSRF guard, validatedaddresses in lightrag/parser/markdown/parser.py, resolves the image host and rejects it when the resolved IP is not isglobal. That check is...

PYSEC-2026-4051 Home Assistant: mDNS Server-Side Request Forgery

Summary Home Assistant Green is vulnerable to a Server-Side Request Forgery SSRF via the mDNS/Zeroconf IPP integration. An unauthenticated attacker on the local network can send a crafted mDNS response to trick Home Assistant into making HTTP requests to arbitrary hosts, including internal servic...

PYSEC-2026-4062 lightrag-hku: No Rate Limiting on /login Endpoint Allows Brute-Force Attacks

Summary The POST /login endpoint has no rate limiting, account lockout, or delay on failed attempts. An attacker can submit unlimited password guesses at full network speed. Details python lightrag/api/lightragserver.py:2161 @app.post"/login" async def loginformdata: OAuth2PasswordRequestForm =...

Home Assistant: mDNS Server-Side Request Forgery

SummaryHome Assistant Green is vulnerable to a Server-Side Request Forgery SSRF via the mDNS/Zeroconf IPP integration. An unauthenticated attacker on the local network can send a crafted mDNS response to trick Home Assistant into making HTTP requests to arbitrary hosts, including internal service...

PYSEC-2026-4111 Nautobot: Authorization bypass in approval workflow REST API allows self-approval and unauthorized activation of scheduled jobs

Impact This is an authorization bypass that escalates into unauthorized server-side job execution. 1. Primary impact - self-approval: The approver checks approver-group membership, change permission on the object under review, one-response-per-user are enforced only in the approve/deny actions on...

lightrag-hku: Sensitive Information Exposure Through Raw Exception Messages in API Error Responses

SummaryThe LightRAG API server passes raw Python exception messages directly into HTTPerror responses across 30+ error handlers in every router. When combined withthe default unauthenticated configuration see companion report on CWE-306, anynetwork-reachable client can trigger exceptions whose ra...

Nautobot: Authorization bypass in approval workflow REST API allows self-approval and unauthorized activation of scheduled jobs

ImpactThis is an authorization bypass that escalates into unauthorized server-side job execution.1. Primary impact - self-approval: The approver checks approver-group membership, change permission on the object under review, one-response-per-user are enforced only in the approve/deny actions on...

PYSEC-2026-4064 lightrag-hku: SSRF via IPv6-transition address bypass (NAT64, IPv4-compatible, 6to4) of the native-markdown image-download guard

Summary LightRAG's native markdown parser downloads external images referenced by an uploaded markdown or textpack document. The only SSRF guard, validatedaddresses in lightrag/parser/markdown/parser.py, resolves the image host and rejects it when the resolved IP is not isglobal. That check is...

PYSEC-2026-4063 lightrag-hku: Sensitive Information Exposure Through Raw Exception Messages in API Error Responses

Summary The LightRAG API server passes raw Python exception messages directly into HTTP error responses across 30+ error handlers in every router. When combined with the default unauthenticated configuration see companion report on CWE-306, any network-reachable client can trigger exceptions whos...

Autobahn Python permessage-deflate bypasses maxMessagePayloadSize after inflation

SummaryAutobahn Python enforces maxMessagePayloadSize against the compressed WebSocket frame length before permessage-deflate inflation, then delivers the inflated message to application callbacks without a second size check. A client frame that is only 22 compressed bytes can inflate to 4096 byt...

Autobahn Python permessage-deflate bypasses maxMessagePayloadSize after inflation

SummaryAutobahn Python enforces maxMessagePayloadSize against the compressed WebSocket frame length before permessage-deflate inflation, then delivers the inflated message to application callbacks without a second size check. A client frame that is only 22 compressed bytes can inflate to 4096 byt...

MCP Atlassian: SSRF Protection Bypass

Environment- Project: sooperset/mcp-atlassian- Affected function: validateurlforssrf- Affected path: header-based Jira/Confluence URL authentication flow- Tested endpoint: POST /mcp- Tested version: 2.14.5 DescriptionThe SSRF protection in validateurlforssrf can be bypassed with a URL containing ...