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CVE-2026-47391

PraisonAI is a multi-agent teams system. Prior to version 4.6.40, PraisonAI's first-party A2A server example exposes an unauthenticated A2A JSON-RPC endpoint and registers a `calculate(expression)` tool implemented with Python `eval()`. The example also binds to `0.0.0.0`. A remote unauthenticated attacker can send `message/send` to `/a2a`; the request reaches `agent.chat()`, and a real LLM can invoke the registered `calculate` tool. In testing with `gemini/gemini-2.5-flash-lite`, this resulted
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:98aba4ac74d11d31760fc3abf8027816c86e52cca1fd101ae5e9d7f8b9ebef84
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"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:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-95","description":"CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"PraisonAI","vendor":"MervinPraison","versions":[{"status":"affected","version":"< 4.6.40"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"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:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"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:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-95","description":"CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/MervinPraison/PraisonAI/commit/e0fb8e7dd1ee6759c18ed07f436c21dbd9c20747","tags":["x_refsource_MISC"],"url":"https://github.com/MervinPraison/PraisonAI/commit/e0fb8e7dd1ee6759c18ed07f436c21dbd9c20747"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/cna/references/2
{"name":"https://github.com/MervinPraison/PraisonAI/pull/1793","tags":["x_refsource_MISC"],"url":"https://github.com/MervinPraison/PraisonAI/pull/1793"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-vg22-4gmj-prxw"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /containers/adp/0/references/0
{"name":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-vg22-4gmj-prxw","tags":["x_refsource_CONFIRM"],"url":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-vg22-4gmj-prxw"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e3feb87c4ba51b3ce1bbe7fe049914c8aae39b1beea7922438a6f20962e65e31 · sha256:d3c20c190fa775c4… · /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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