How severe is CVE-2026-3964?

CVE-2026-3964 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-3964 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3964?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3964 have an EU (EUVD) identifier?

Yes. CVE-2026-3964 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11486.

When was CVE-2026-3964 published?

CVE-2026-3964 was published on 2026-03-11 and last updated on 2026-06-17.

CVE-2026-3964

CVE-2026-3964 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-77.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
CVSS v4: 1.9
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-11486
Weakness: CWE-77
Published: 2026-03-11
Last modified: 2026-06-17

Description

A weakness has been identified in OpenAkita up to 1.24.3. This impacts the function run of the file src/openakita/tools/shell.py of the component Chat API Endpoint. Executing a manipulation of the argument Message can lead to os command injection. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-3964?: A weakness has been identified in OpenAkita up to 1.24.3. This impacts the function run of the file src/openakita/tools/shell.py of the component Chat API Endpoint. Executing a manipulation of the argument Message can lead to os command injection. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-3964?: CVE-2026-3964 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-3964 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-3964?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3964 have an EU (EUVD) identifier?: Yes. CVE-2026-3964 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11486.
When was CVE-2026-3964 published?: CVE-2026-3964 was published on 2026-03-11 and last updated on 2026-06-17.

References

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