Gitea Basic Auth bypasses OAuth2 access token scopes

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-28699
StatePUBLISHED
AssignerGitea
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-03 21:16:59 UTC
Updated2026-07-06 18:17:26 UTC
DescriptionGitea versions up to and including 1.26.1 allow OAuth2 access token scope enforcement to be bypassed through HTTP Basic authentication.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from 88ee5874-cf24-4952-aea0-31affedb7ff2

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

EPSS: 0.005660000 probability, percentile 0.428980000 (date 2026-07-08)

Problem Types: CWE-284 | CWE-863 | CWE-284 Improper Access Control | CWE-863 Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.188ee5874-cf24-4952-aea0-31affedb7ff2Secondary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.1CNADECLARED8.1HIGHCVSS: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 Open Source Git Server affected 1.26.1 semver Not specified

References

ReferenceSourceLinkTags
github.com/go-gitea/gitea/security/advisories/GHSA-9r5x-wg6m-x2rc 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
blog.gitea.com/release-of-1.26.2 88ee5874-cf24-4952-aea0-31affedb7ff2 blog.gitea.com
github.com/go-gitea/gitea/pull/37503 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
github.com/go-gitea/gitea/releases/tag/v1.26.2 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: Alardiians (en)

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