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CVE-2026-82290

Chainlit Feedback Endpoints Missing Ownership Validation

CVSS 4.0 6.0 MEDIUMCVSS 3.1 5.3 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-82290

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-82290

Published

chainlit

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Chainlit",
                    "product": "chainlit",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "2.12.0",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected",
                    "packageName": "chainlit"
                }

Original source record · Cite this exact observation · Complete original publisher JSON