CVE Explorer

CVE-2026-39889

PraisonAI is a multi-agent teams system. Prior to 4.5.115, the A2U (Agent-to-User) event stream server in PraisonAI exposes all agent activity without authentication. The create_a2u_routes() function registers the following endpoints with NO authentication checks: /a2u/info, /a2u/subscribe, /a2u/events/{stream_name}, /a2u/events/sub/{id}, and /a2u/health. This vulnerability is fixed in 4.5.115.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5211e48d6313175d498b4b53f4674bf1add1a785bd73446cb651f8396f001803

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"PraisonAI","vendor":"MervinPraison","versions":[{"status":"affected","version":"< 4.5.115"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:96031fb95701b8aeff1425fd1b8adda763befff78b6fa88b841ccacd4390bd0b · sha256:e54f1e33cb3597d4… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:96031fb95701b8aeff1425fd1b8adda763befff78b6fa88b841ccacd4390bd0b · sha256:e54f1e33cb3597d4… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:96031fb95701b8aeff1425fd1b8adda763befff78b6fa88b841ccacd4390bd0b · sha256:e54f1e33cb3597d4… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-f292-66h9-fpmf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-f292-66h9-fpmf"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:96031fb95701b8aeff1425fd1b8adda763befff78b6fa88b841ccacd4390bd0b · sha256:e54f1e33cb3597d4… · /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.

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