CVE Explorer

CVE-2026-40289

PraisonAI is a multi-agent teams system. In versions below 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents, the browser bridge (praisonai browser start) is vulnerable to unauthenticated remote session hijacking due to missing authentication and a bypassable origin check on its /ws WebSocket endpoint. The server binds to 0.0.0.0 by default and only validates the Origin header when one is present, meaning any non-browser client that omits the header is accepted without restriction. An unauthen

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:641127acdd4600b52fae8fedba5eacc9b0f4c83451d072bafd0fd4df90809c26

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"PraisonAI","vendor":"MervinPraison","versions":[{"status":"affected","version":"< 4.5.139"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:4ba2b46d4d57ec90e343af535d408c0589c9438f291eef5854e0dbf23c1f8479 · sha256:611dd6b9f4f7fef0… · /containers/cna/affected/0

{"product":"praisonaiagents","vendor":"MervinPraison","versions":[{"status":"affected","version":"< 1.5.140"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:4ba2b46d4d57ec90e343af535d408c0589c9438f291eef5854e0dbf23c1f8479 · sha256:611dd6b9f4f7fef0… · /containers/cna/affected/1

Affected products and versions

2 source assertions

{"product":"PraisonAI","vendor":"MervinPraison","versions":[{"status":"affected","version":"< 4.5.139"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:4ba2b46d4d57ec90e343af535d408c0589c9438f291eef5854e0dbf23c1f8479 · sha256:611dd6b9f4f7fef0… · /containers/cna/affected/0

{"product":"praisonaiagents","vendor":"MervinPraison","versions":[{"status":"affected","version":"< 1.5.140"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:4ba2b46d4d57ec90e343af535d408c0589c9438f291eef5854e0dbf23c1f8479 · sha256:611dd6b9f4f7fef0… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:4ba2b46d4d57ec90e343af535d408c0589c9438f291eef5854e0dbf23c1f8479 · sha256:611dd6b9f4f7fef0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:4ba2b46d4d57ec90e343af535d408c0589c9438f291eef5854e0dbf23c1f8479 · sha256:611dd6b9f4f7fef0… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-8x8f-54wf-vv92","tags":["x_refsource_CONFIRM"],"url":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-8x8f-54wf-vv92"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:4ba2b46d4d57ec90e343af535d408c0589c9438f291eef5854e0dbf23c1f8479 · sha256:611dd6b9f4f7fef0… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer