How severe is CVE-2025-8279?

CVE-2025-8279 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-8279 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-8279?

CVE-2025-8279 affects Gitlab Language Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-8279?

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-2025-8279 have an EU (EUVD) identifier?

Yes. CVE-2025-8279 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22905.

When was CVE-2025-8279 published?

CVE-2025-8279 was published on 2025-07-28 and last updated on 2026-06-17.

CVE-2025-8279

CVE-2025-8279 is a high-severity vulnerability in Gitlab Language Server with a CVSS 3.x base score of 8.7. 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-306.

Key facts

Severity: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-22905
Weakness: CWE-306
Affected product: Gitlab Language Server
Published: 2025-07-28
Last modified: 2026-06-17

Description

Insufficient input validation within GitLab Language Server 7.6.0 and later before 7.30.0 allows arbitrary GraphQL query execution

Frequently asked questions

What is CVE-2025-8279?: Insufficient input validation within GitLab Language Server 7.6.0 and later before 7.30.0 allows arbitrary GraphQL query execution
How severe is CVE-2025-8279?: CVE-2025-8279 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-8279 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-8279?: CVE-2025-8279 affects Gitlab Language Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-8279?: 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-2025-8279 have an EU (EUVD) identifier?: Yes. CVE-2025-8279 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22905.
When was CVE-2025-8279 published?: CVE-2025-8279 was published on 2025-07-28 and last updated on 2026-06-17.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/538205

Affected products (1)

cpe:2.3:a:gitlab:language_server:*:*:*:*:*:*:*:*

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