CVE-2026-34938: PraisonAI: Python Sandbox Escape via str Subclass startswith() Override in execute_code
MervinPraison · PraisonAI
Affected: MervinPraison PraisonAI · Exploitation: likely to be exploited (10% or more)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 96% of scored CVEs
DescriptionCVE.org
PraisonAI is a multi-agent teams system. Prior to version 1.5.90, execute_code() in praisonai-agents runs attacker-controlled Python inside a three-layer sandbox that can be fully bypassed by passing a str subclass with an overridden startswith() method to the _safe_getattr wrapper, achieving arbitrary OS command execution on the host. This issue has been patched in version 1.5.90.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- MervinPraison · PraisonAI< 1.5.90
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- MervinPraison
- Published
- April 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-34938 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.