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CVE-2026-101023— Gitea OAuth2 refresh token grant accepts access tokens

Quick assessment

Affected
Gitea Gitea
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gitea 的 OAuth2 令牌端点在接收使用 （刷新令牌）授权类型的请求时，虽然验证了令牌的签名和授权类型，但未进一步确认该令牌确实为刷新令牌。攻击者可以使用同一 OAuth2 应用且同一授权类型下的未过期访问令牌，换取新的访问令牌和刷新令牌。任何持有此类访问令牌的人，都可以在该令牌原始有效期之后继续维持访问权限。

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I. Basic Information for CVE-2026-101023

Vulnerability Information
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Vulnerability Title
Gitea OAuth2 refresh token grant accepts access tokens
Source: CVE Program / CVE List V5
Vulnerability Description
Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` grant type, but not that the token was a refresh token. An unexpired access token for the same OAuth2 application and grant could be exchanged for a new access token and refresh token. Whoever holds such an access token could keep access beyond the token's original lifetime.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Gitea Gitea 0 ~ 28.0.0 -

II. Public POCs for CVE-2026-101023

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III. Intelligence Information for CVE-2026-101023

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Other References for CVE-2026-101023 (5)

Same Patch Batch · Gitea · 2026-10-06 · 30 CVEs total

CVE-2026-96399 Gitea denial of service through external issue tracker patterns
CVE-2026-97626 Gitea profile feed disclosure bypassing user visibility
CVE-2026-96594 Gitea repository media API stored XSS
CVE-2026-104633 Gitea migration memory exhaustion from zero page size
CVE-2026-105267 Gitea tag delete route deletes releases without release permission
CVE-2026-105268 Gitea issue attachment API allows changing comment attachments
CVE-2026-89182 Gitea push-to-create bypass of FORCE_PRIVATE policy
CVE-2026-86684 Gitea push mirror local path check uses the repository owner
CVE-2026-97208 Gitea push mirror API bypass of DISABLE_NEW_PUSH policy
CVE-2026-73278 Gitea WebAuthn bypass during OAuth and OIDC sign-in
CVE-2026-79960 Gitea deploy key pushes acting as the repository owner
CVE-2026-70357 Gitea repository migration SSRF through DNS rebinding
CVE-2026-96580 Gitea Actions memory exhaustion through large static matrices
CVE-2026-96589 Gitea private repository access retained after rejected transfer
CVE-2026-96400 Gitea migration SSRF to reserved addresses through ALLOWED_DOMAINS
CVE-2026-94205 Gitea fork workflow approval bypass through maintainer-triggered events
CVE-2026-96404 Gitea installer authentication bypass for existing accounts
CVE-2026-104626 Gitea fork workflow job revival through later approval
CVE-2026-104632 Gitea fork workflow approval bypass through cancel and rerun
CVE-2026-104636 Gitea SSRF through Git HTTP redirects in mirrors and fetches

Showing top 20 of 30 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Gitea
Same vendor: Gitea

V. Comments for CVE-2026-101023

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