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CVE-2026-34955

Praison Praisonai command injection

8.8 HIGHPublic exploitEPSS 0.39%
  1. Published3 Apr 2026

Description

PraisonAI is a multi-agent teams system. Prior to version 4.5.97, SubprocessSandbox in all modes (BASIC, STRICT, NETWORK_ISOLATED) calls subprocess.run() with shell=True and relies solely on string-pattern matching to block dangerous commands. The blocklist does not include sh or bash as standalone executables, allowing trivial sandbox escape in STRICT mode via sh -c '<command>'. This issue has been patched in version 4.5.97.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Praison Praisonai< 4.5.97

Remediation

Fixed in
Praison Praisonai≥ 4.5.97

References

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Frequently asked

Is CVE-2026-34955 being actively exploited?

CVE-2026-34955 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.39%.

How severe is CVE-2026-34955?

CVE-2026-34955 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.39% probability of exploitation.

Which products are affected by CVE-2026-34955?

Affected products include Praison Praisonai.

How do I fix CVE-2026-34955?

Upgrade affected software to a fixed version, for example Praison Praisonai 4.5.97 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-34955 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.