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CVE-2026-40154

Praison Praisonai vulnerability

9.3 CRITICALPublic exploitEPSS 0.46%
  1. Published9 Apr 2026

Description

PraisonAI is a multi-agent teams system. Prior to 4.5.128, PraisonAI treats remotely fetched template files as trusted executable code without integrity verification, origin validation, or user confirmation, enabling supply chain attacks through malicious templates. This vulnerability is fixed in 4.5.128.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Affected products

Praison Praisonai< 4.5.128

Remediation

Fixed in
Praison Praisonai≥ 4.5.128

References

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Frequently asked

Is CVE-2026-40154 being actively exploited?

CVE-2026-40154 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.46%.

How severe is CVE-2026-40154?

CVE-2026-40154 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.46% probability of exploitation.

Which products are affected by CVE-2026-40154?

Affected products include Praison Praisonai.

How do I fix CVE-2026-40154?

Upgrade affected software to a fixed version, for example Praison Praisonai 4.5.128 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-40154 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.