CVE-2026-44339
CVE-2026-44339 is a high-severity vulnerability in Praison Praisonai with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-470.
Key facts
- Severity: High (CVSS 3.x base score 8.6)
- EPSS exploit prediction: 0% (28th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-28642
- Weakness: CWE-470
- Affected product: Praison Praisonai
- Published:
- Last modified:
Description
PraisonAI is a multi-agent teams system. Prior to praisonai version 4.6.37 and praisonaiagents version 1.6.37, praisonaiagents resolves unresolved tool names against module globals and __main__ after it fails to match the declared tool list and the registry. With the default agent configuration, _perm_allow is None, so undeclared non-dangerous tool names are not rejected by the permission gate. An attacker who can influence tool-call names can therefore invoke unintended application callables that were never declared as tools. This issue has been patched in praisonai version 4.6.37 and praisonaiagents version 1.6.37.
Frequently asked questions
- What is CVE-2026-44339?
- PraisonAI is a multi-agent teams system. Prior to praisonai version 4.6.37 and praisonaiagents version 1.6.37, praisonaiagents resolves unresolved tool names against module globals and __main__ after it fails to match the declared tool list and the registry. With the default agent configuration, _perm_allow is None, so undeclared non-dangerous tool names are not rejected by the permission gate. An attacker who can influence tool-call names can therefore invoke unintended application callables that were never declared as tools. This issue has been patched in praisonai version 4.6.37 and praisonaiagents version 1.6.37.
- How severe is CVE-2026-44339?
- CVE-2026-44339 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
- Is CVE-2026-44339 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-44339?
- CVE-2026-44339 primarily affects Praison Praisonai. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-44339?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-44339 have an EU (EUVD) identifier?
- Yes. CVE-2026-44339 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28642.
- When was CVE-2026-44339 published?
- CVE-2026-44339 was published on 2026-05-08 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*
- cpe:2.3:a:praison:praisonaiagents:*:*:*:*:*:python:*:*
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