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PraisonAI: execute_code sandbox bypass: str.format C-level attribute access reads every blocklisted dunder

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-57120

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-57120

Published

praisonaiagents

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "MervinPraison",
                    "product": "praisonaiagents",
                    "versions": [
                        {
                            "version": "< 1.6.59",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

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Sources read 13 Nov 12:08 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current