Medium severity5.3NVD Advisory· Published Aug 28, 2026

CVE-2026-82290

Description

Chainlit through 2.12.0 fails to validate ownership of feedback records in PUT and DELETE endpoints. Authenticated attackers can delete or modify other users' feedback by supplying arbitrary feedback identifiers, corrupting human-rating data used for model evaluation.

Affected products

Chainlit/Chainlitreferences2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=2.12.0

Patches

Vulnerability mechanics

References

github.com/Chainlit/chainlit/blob/190ea74239d9e84b26e7c91bc2882dd038942564/backend/chainlit/server.pynvd
github.com/Chainlit/chainlit/issues/2975nvd
www.vulncheck.com/advisories/chainlit-feedback-endpoints-missing-ownership-validationnvd

News mentions

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cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000