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CVE-2026-34935

Praison Praisonai command injection

9.8 CRITICALPublic exploitEPSS 0.99%
  1. Published3 Apr 2026

Description

PraisonAI is a multi-agent teams system. From version 4.5.15 to before version 4.5.69, the --mcp CLI argument is passed directly to shlex.split() and forwarded through the call chain to anyio.open_process() with no validation, allowlist check, or sanitization at any hop, allowing arbitrary OS command execution as the process user. This issue has been patched in version 4.5.69.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Praison Praisonai≥ 4.5.15 < 4.5.69

Remediation

Fixed in
Praison Praisonai≥ 4.5.69

References

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Frequently asked

Is CVE-2026-34935 being actively exploited?

CVE-2026-34935 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.99%.

How severe is CVE-2026-34935?

CVE-2026-34935 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.99% probability of exploitation.

Which products are affected by CVE-2026-34935?

Affected products include Praison Praisonai.

How do I fix CVE-2026-34935?

Upgrade affected software to a fixed version, for example Praison Praisonai 4.5.69 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-34935 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.