CVE-2026-20883

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 26.4% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-01-22 22:01Z7 MO AGO

Last updated

2026-01-23 21:54Z7 MO AGO

Reserved

2026-01-08

Assigning CNA

Gitea

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weaknesses

• CWE-284Improper Access ControlPillar

Data version

5.2

Document digest

55f1995b5f23f359fbf5841488847075ed9db4fa17ed53b4246e9d600a05921f

• github.comGitHub Security Advisoryhttps://github.com/go-gitea/gitea/security/advisories/GHSA-644v-xv3j-xgqgvendor-advisory
• github.comGitHub Pull Request #36340https://github.com/go-gitea/gitea/pull/36340patch
• github.comGitHub Pull Request #36368https://github.com/go-gitea/gitea/pull/36368patch
• github.comGitea v1.25.4 Releasehttps://github.com/go-gitea/gitea/releases/tag/v1.25.4release-notes
• blog.gitea.comGitea v1.25.4 Release Blog Posthttps://blog.gitea.com/release-of-1.25.4/release-notes