Gitea API team demotion not applied to unit permissions

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-103504
StatePUBLISHED
AssignerGitea
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-06 20:17:14 UTC
Updated2026-10-07 21:17:07 UTC
DescriptionChanging an organization team's permission through the API with only the `permission` field did not rebuild the team's per-unit access, and the requested level was not applied as a cap. After an organization owner demoted a team, for example from admin to read, the team's members kept their previous unit permissions, including write access to the team's repositories. The web form was not affected.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from ADP

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

EPSS: 0.001610000 probability, percentile 0.047070000 (date 2026-10-07)

Problem Types: CWE-272 | CWE-272 CWE-272: Least Privilege Violation

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gitea Gitea affected 1.27.3 semver Not specified

References

ReferenceSourceLinkTags
github.com/go-gitea/gitea/releases/tag/v28.0.0 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
github.com/go-gitea/gitea/security/advisories/GHSA-x8c3-3rp8-2j46 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
blog.gitea.com/release-of-28.0.0 88ee5874-cf24-4952-aea0-31affedb7ff2 blog.gitea.com
github.com/go-gitea/gitea/pull/38938 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: https://github.com/1K0CT (en)

CNA: https://github.com/bircni (en)

CNA: https://github.com/wxiaoguang (en)

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