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CVE-2026-56104 Chainlit < 2.10.1 Session Hijacking via WebSocket Session Restoration

🗓️ 22 Jun 2026 14:17:52Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 30 Views

Chainlit before 2.10.1 allows session hijacking via WebSocket with a valid sessionId to assume a victim's session.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-56104
22 Jun 202614:17
attackerkb
Circl
CVE-2026-56104
22 Jun 202619:46
circl
CVE
CVE-2026-56104
22 Jun 202614:17
cve
EUVD
EUVD-2026-38285
22 Jun 202614:17
euvd
NVD
CVE-2026-56104
22 Jun 202616:16
nvd
OSV
CVE-2026-56104 Chainlit < 2.10.1 Session Hijacking via WebSocket Session Restoration
22 Jun 202614:17
osv
Positive Technologies
PT-2026-51339
22 Jun 202600:00
ptsecurity
Snyk
Missing Authorization
22 Jun 202616:25
snyk
Veracode
Session Hijacking
26 Jun 202611:50
veracode
vulnersOsv
agentic-fleet (>=0.4.0 <=0.4.1) potentially affected by CVE-2026-56104 via chainlit (>=2.0.0 <=2.0.1)
22 Jun 202616:25
vulnersosv
Rows per page
[
  {
    "defaultStatus": "affected",
    "vendor": "Chainlit",
    "product": "chainlit",
    "repo": "https://github.com/Chainlit/chainlit",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThan": "2.10.1"
      }
    ]
  }
]

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23 Jun 2026 14:42Current
CVSS 3.18.2
CVSS 48.8
EPSS0.00256
30