CVE-2026-57120PraisonAI: execute_code sandbox bypass: str.format C-level attribute access reads every blocklisted dunder
Updated under an hour ago ()
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It affects MervinPraison praisonaiagents. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59, execute_code sandbox mode permits runtime assembly of blocklisted dunder names and allows str.format or str.format_map to resolve dotted fields through C-level attribute access that bypasses _safe_getattr. This exposes class, qualified-name, base-class, globals, and object-dictionary attributes to prompt-influenced code when approval is automatically granted, producing a high-impact read primitive without establishing a complete in-process execution chain. This issue is fixed in praisonaiagents 1.6.59.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-693
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MervinPraison praisonaiagents mervinpraison:praisonaiagents (from the name) | before 1.6.59 | CNA record |
References
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-pv2j-rghr-v5r9x-refsource-confirm
- https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9x-refsource-misc
- https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.