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CVE

CVE-2026-47396

PraisonAI call server exposes unauthenticated agent listing, invocation, and deletion when CALL_SERVER_TOKEN is unset
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CVE

CVE-2026-47396

PraisonAI call server exposes unauthenticated agent listing, invocation, and deletion when CALL_SERVER_TOKEN is unset

PraisonAI is a multi-agent teams system. Prior to version 4.6.40, PraisonAI's call server exposes a network-facing agent control API without authentication when CALLSERVERTOKEN is not configured. The affected component is the praisonai.api.agent_invoke router as mounted by praisonai.api.call. The authentication helper verify_token() fails open when CALLSERVERTOKEN is unset. Since every sensitive agent-control endpoint depends on this helper, starting the call server without a token allows any reachable client to list agents, inspect agent metadata and instructions, invoke agents, and unregister agents. This is security-relevant because the bundled call server includes the vulnerable router and binds to 0.0.0.0. As a result, operators who launch the call server without explicitly setting CALLSERVERTOKEN may unintentionally expose an unauthenticated remote agent control plane. Version 4.6.40 fixes the issue.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47396.json, https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-86qc-r5v2-v6x6, https://nvd.nist.gov/vuln/detail/CVE-2026-47396, https://github.com/MervinPraison/PraisonAI/commit/ef79b7a0561796ad9807f0f09538c25cc78d3619

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00642%
EPSS Percentile
0.49327%
Introduced Version
0
Fix Available
a72e156c4d01ef06c64529d302c21381d6485716

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