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01 Record

CVE-2026-34938

PraisonAI: Python Sandbox Escape via str Subclass startswith() Override in execute_code

CriticalPUBLISHEDCNA: GitHub_M
CNA base score10.0 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

02 Description

PraisonAI: Python Sandbox Escape via str Subclass startswith() Override in execute_code

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
13.17% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 96.3% of scored records. A rank, not a probability.
NVD base score
10.0 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-07-24.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-03 22:51Z6 MO AGO
Last updated
2026-04-06 13:23Z6 MO AGO
Reserved
2026-03-31
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Critical (CVSS 10.0)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-693Protection Mechanism FailurePillar
Data version
5.2
Document digest
38b0358991a9f734c9f7af238b5f7e118f1cf2878e95dcf8b2b6da4ad2b120ba

05 Affected products

VendorProductVersionsPlatforms
MervinPraisonPraisonAI< 1.5.90—

06 References