How severe is CVE-2026-3071?

CVE-2026-3071 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-3071 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3071?

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-2026-3071 have an EU (EUVD) identifier?

Yes. CVE-2026-3071 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8855.

When was CVE-2026-3071 published?

CVE-2026-3071 was published on 2026-02-26 and last updated on 2026-06-17.

CVE-2026-3071

CVE-2026-3071 is a high-severity vulnerability with a CVSS 3.x base score of 8.4. 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-502.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8855
Weakness: CWE-502
Published: 2026-02-26
Last modified: 2026-06-17

Description

Deserialization of untrusted data in the LanguageModel class of Flair from versions 0.4.1 to latest are vulnerable to arbitrary code execution when loading a malicious model.

Frequently asked questions

What is CVE-2026-3071?: Deserialization of untrusted data in the LanguageModel class of Flair from versions 0.4.1 to latest are vulnerable to arbitrary code execution when loading a malicious model.
How severe is CVE-2026-3071?: CVE-2026-3071 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-3071 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-3071?: 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-2026-3071 have an EU (EUVD) identifier?: Yes. CVE-2026-3071 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8855.
When was CVE-2026-3071 published?: CVE-2026-3071 was published on 2026-02-26 and last updated on 2026-06-17.

References

https://www.hiddenlayer.com/sai-security-advisory/2026-02-flair

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