CVE-2026-22218

MEDIUM

6.5

Description

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.

Details CVE

Score CVSS v3.16.5

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie1/20/2026

Derniere modification2/2/2026

Sourcenvd

Observations honeypot0

Produits affectes

chainlit:chainlit

Faiblesses (CWE)

CWE-22

References

https://github.com/Chainlit/chainlit/releases/tag/2.9.4(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/chainlit-arbitrary-file-read-via-project-element(disclosure@vulncheck.com)

https://www.zafran.io/resources/chainleak-critical-ai-framework-vulnerabilities-expose-data-enable-cloud-takeover(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

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