High severity8.8NVD Advisory· Published Apr 4, 2026· Updated Apr 14, 2026
CVE-2026-34955
CVE-2026-34955
Description
PraisonAI is a multi-agent teams system. Prior to version 4.5.97, SubprocessSandbox in all modes (BASIC, STRICT, NETWORK_ISOLATED) calls subprocess.run() with shell=True and relies solely on string-pattern matching to block dangerous commands. The blocklist does not include sh or bash as standalone executables, allowing trivial sandbox escape in STRICT mode via sh -c ''. This issue has been patched in version 4.5.97.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
praisonaiPyPI | < 4.5.97 | 4.5.97 |
Affected products
2Patches
Vulnerability mechanics
References
3- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-r4f2-3m54-pp7qnvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-r4f2-3m54-pp7qghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34955ghsaADVISORY
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