A AegiFlow
CRITICALCVSS 9.1EPSS 0.3%

CVE-2026-55536

CVE-2026-55536 updated by NVD

Published
2026-08-25
Modified
2026-09-11
EPSS percentile
21%
Sources
github-advisory, nvd

Summary

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, Browser Server _handle_connection() checks Chrome extension origins with re.match() and the unanchored expression chrome-extension://[a-z0-9]{32}. Extra trailing characters pass before websocket.accept(), allowing start_session commands and unauthorized browser automation. This issue is fixed in version 4.6.58.

Affected packages

EcosystemPackageAffected versionsFixed versions
PyPIPraisonAI4.6.58

Remediation: Upgrade to 4.6.58 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.