How severe is CVE-2026-20888?

CVE-2026-20888 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-2026-20888 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-20888?

CVE-2026-20888 affects Gitea. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-20888?

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

Does CVE-2026-20888 have an EU (EUVD) identifier?

Yes. CVE-2026-20888 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4265.

When was CVE-2026-20888 published?

CVE-2026-20888 was published on 2026-01-22 and last updated on 2026-06-17.

CVE-2026-20888

CVE-2026-20888 is a medium-severity vulnerability in Gitea 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4265
Weakness: CWE-284
Affected product: Gitea
Published: 2026-01-22
Last modified: 2026-06-17

Description

Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users.

Frequently asked questions

What is CVE-2026-20888?: Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users.
How severe is CVE-2026-20888?: CVE-2026-20888 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-2026-20888 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-20888?: CVE-2026-20888 affects Gitea. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-20888?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-20888 have an EU (EUVD) identifier?: Yes. CVE-2026-20888 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4265.
When was CVE-2026-20888 published?: CVE-2026-20888 was published on 2026-01-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gitea:gitea:*:*:*:*:*:-:*:*

More vulnerabilities in Gitea

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