Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The praisonai PyPI package, versions from 4.5.15 before 4.5.69, passes the --mcp command-line argument to shell-style splitting and then to process creation without validation, so it can execute arbitrary OS commands. An attacker who can influence the --mcp argument, with no authentication needed, can run commands as the user running the process. Upgrade to praisonai 4.5.69 or later, which adds a command allowlist; until then, do not pass untrusted input to --mcp.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 9.8 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0084, the 58th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:04 UTC First seen by agentprime
- 31 Oct 2026, 15:04 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-9gm9-c8mq-vq7m
- OSV: GHSA-9gm9-c8mq-vq7m
- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-9gm9-c8mq-vq7m
- nvd.nist.gov/vuln/detail/CVE-2026-34935
- github.com/MervinPraison/PraisonAI/commit/47bff65413beaa3c21bf633c1fae4e684348368c
- github.com/MervinPraison/PraisonAI
- pypi.org/project/praisonai
- github.com/advisories/GHSA-9gm9-c8mq-vq7m