How severe is CVE-2026-34937?

CVE-2026-34937 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-34937 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34937?

CVE-2026-34937 affects Praison Praisonaiagents. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34937?

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-2026-34937 have an EU (EUVD) identifier?

Yes. CVE-2026-34937 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18917.

When was CVE-2026-34937 published?

CVE-2026-34937 was published on 2026-04-03 and last updated on 2026-06-17.

CVE-2026-34937

CVE-2026-34937 is a high-severity vulnerability in Praison Praisonaiagents with a CVSS 3.x base score of 7.8. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18917
Weakness: CWE-78
Affected product: Praison Praisonaiagents
Published: 2026-04-03
Last modified: 2026-06-17

Description

PraisonAI is a multi-agent teams system. Prior to version 1.5.90, run_python() in praisonai constructs a shell command string by interpolating user-controlled code into python3 -c "<code>" and passing it to subprocess.run(..., shell=True). The escaping logic only handles \ and ", leaving $() and backtick substitutions unescaped, allowing arbitrary OS command execution before Python is invoked. This issue has been patched in version 1.5.90.

Frequently asked questions

What is CVE-2026-34937?: PraisonAI is a multi-agent teams system. Prior to version 1.5.90, run_python() in praisonai constructs a shell command string by interpolating user-controlled code into python3 -c "<code>" and passing it to subprocess.run(..., shell=True). The escaping logic only handles \ and ", leaving $() and backtick substitutions unescaped, allowing arbitrary OS command execution before Python is invoked. This issue has been patched in version 1.5.90.
How severe is CVE-2026-34937?: CVE-2026-34937 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-34937 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34937?: CVE-2026-34937 affects Praison Praisonaiagents. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34937?: 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-2026-34937 have an EU (EUVD) identifier?: Yes. CVE-2026-34937 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18917.
When was CVE-2026-34937 published?: CVE-2026-34937 was published on 2026-04-03 and last updated on 2026-06-17.

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-w37c-qqfp-c67f

Affected products (1)

cpe:2.3:a:praison:praisonaiagents:*:*:*:*:*:*:*:*

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