How severe is CVE-2025-6981?

CVE-2025-6981 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-6981 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-6981?

CVE-2025-6981 affects Github Enterprise Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-6981?

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

Does CVE-2025-6981 have an EU (EUVD) identifier?

Yes. CVE-2025-6981 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21556.

When was CVE-2025-6981 published?

CVE-2025-6981 was published on 2025-07-15 and last updated on 2026-06-17.

CVE-2025-6981

CVE-2025-6981 is a medium-severity vulnerability in Github Enterprise Server with a CVSS 3.x base score of 4.3. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v4: 5.3
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21556
Weakness: CWE-863
Affected product: Github Enterprise Server
Published: 2025-07-15
Last modified: 2026-06-17

Description

An incorrect authorization vulnerability allowed unauthorized read access to the contents of internal repositories for contractor accounts when the Contractors API feature was enabled. The Contractors API is a rarely-enabled feature in private preview. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18 and was fixed in versions 3.14.15, 3.15.10, 3.16.6 and 3.17.3

Frequently asked questions

What is CVE-2025-6981?: An incorrect authorization vulnerability allowed unauthorized read access to the contents of internal repositories for contractor accounts when the Contractors API feature was enabled. The Contractors API is a rarely-enabled feature in private preview. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18 and was fixed in versions 3.14.15, 3.15.10, 3.16.6 and 3.17.3
How severe is CVE-2025-6981?: CVE-2025-6981 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-6981 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-6981?: CVE-2025-6981 affects Github Enterprise Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-6981?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-6981 have an EU (EUVD) identifier?: Yes. CVE-2025-6981 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21556.
When was CVE-2025-6981 published?: CVE-2025-6981 was published on 2025-07-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*

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