PyPI/chainlit CVE-2026-56104: high 7.4, EPSS 0.42%

Chainlit contains a session hijacking vulnerability

Action: Upgrade chainlit to 2.10.1 or later.

pip install chainlit==2.10.1

Affected

Fixed versions

Sources

• osv: PYSEC-2026-4028
• https://nvd.nist.gov/vuln/detail/CVE-2026-56104
• https://github.com/Chainlit/chainlit/pull/2857
• https://github.com/Chainlit/chainlit/commit/5effb664f1e0af4a4f0a42fe63ea979676039a7f
• https://github.com/Chainlit/chainlit
• https://github.com/Chainlit/chainlit/releases/tag/2.10.1
• https://www.vulncheck.com/advisories/chainlit-session-hijacking-via-websocket-session-restoration
• https://pypi.org/project/chainlit
• https://github.com/advisories/GHSA-c39v-8hrw-h448

CVE-2026-56104 · published 2026-10-01T16:38:28.448202Z · modified 2026-10-01T17:45:05.547351343Z · JSON