CVE-2026-22218 — Chainlit < 2.9.4 Arbitrary File Read via /project/element
Chainlit versions prior to 2.9.4 contain an arbitrary file read vulnerability in the /project/element update flow. An authenticated client can send a custom Element with a user-…
Published: 2026-01-19 · CVSS: 7.1 · CVSS 4.0
Chainlit versions prior to 2.9.4 contain an arbitrary file read vulnerability in the /project/element update flow. An authenticated client can send a custom Element with a user-controlled path value, causing the server to copy the referenced file into the attacker’s session. The resulting element identifier (chainlitKey) can then be used to retrieve the file contents via /project/file/<chainlitKey>, allowing disclosure of any file readable by the Chainlit service.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7