Command Injection Vulnerability in PraisonAI by Mervin Praison
CVE-2026-48168

10CRITICAL

Key Information:

Vendor

Mervinpraison

Status
Praisonai
Vendor
CVE Published:
5 August 2026

What is CVE-2026-48168?

PraisonAI, a multi-agent teams system, has a command injection vulnerability in versions prior to 4.6.40 due to a flawed GitHub Actions workflow. This vulnerability arises from the workflow improperly handling attacker-controlled pull request branch names in a Bash run block, lacking proper quoting or validation. Furthermore, the workflow permits any @claude comment to trigger job execution, regardless of the commenter's trust status. An attacker can exploit this by crafting a pull request from a fork with a shell metacharacter in the branch name and using an @claude comment to execute arbitrary shell commands on the GitHub Actions runner. These commands operate with elevated GitHub App token privileges, allowing potential repository writes, manipulation of pull requests/issues, or abuse of OIDC tokens. The issue is resolved in version 4.6.40.

Affected Version(s)

PraisonAI < 4.6.40

References

https://github.com/MervinPraison/PraisonAI/security/advis...
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https://github.com/MervinPraison/PraisonAI/commit/179cab0...
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CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.