MEDIUMPyPI →
Chainlist has SSRF via MCP SSE and streamable-http transports that allows unauthenticated internal network access
Chainlist has SSRF via MCP SSE and streamable-http transports that allows unauthenticated internal network access
Affected packages
- chainlit— 2.4.0rc0 → 2.12.0
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/Chainlit/chainlit/security/advisories/GHSA-hvfh-5mj3-5f3j
- https://github.com/Chainlit/chainlit/commit/0565fd0eccb915fce159929598b053ed79f6e0c9
- https://github.com/Chainlit/chainlit
- https://github.com/Chainlit/chainlit/blob/2.12.0/docs/security-advisory-2026-mcp.md#spl-2026-002--ssrf-via-mcp-streamable-http--sse
- https://github.com/Chainlit/chainlit/releases/tag/2.12.0
Structured record: https://osv.dev/vulnerability/GHSA-hvfh-5mj3-5f3j
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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