CVE•Published 2026-06-22•Modified 2026-07-14•1 article on news•4 live references•NVD data
CVE-2026-56104
Vulnerability data via NVD (ingested)
CVSS v3.1
8.2
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
EPSS percentile
17
Exploit Prediction Scoring System · top 83% of all CVEs
Weaknesses (CWE)
Description
Chainlit before 2.10.1 contains a session hijacking vulnerability that allows unauthenticated attackers to restore and inherit authenticated user sessions by presenting a valid sessionId during WebSocket session restoration without ownership verification. Attackers can exploit the restore_existing_session path to assume a victim's permissions and roles, enabling unauthorized invocation of tools and access to data restricted to the authenticated victim.
Timeline
Published 2026-06-22
Modified 2026-07-14
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-56104Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-56104Censys host search filtered to this CVE id.
grep.app
CVE-2026-56104Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-56104GitHub code search for direct mentions.
Google dork
"CVE-2026-56104" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-56104 on GitHub.