PatchTheCVECVE-2026-101023: Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` g
CVE-2026-101023 is a critical-severity flaw (CVSS 9.1) affecting gitea. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.1 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 71%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2026-10-06 |
| Last modified | 2026-10-13 |
Last updated 2026-10-13 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-101023?
gitea: upgrade to 28.1.0. Exact commands for each OS are on this page.
Is CVE-2026-101023 being exploited?
CVE-2026-101023 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-101023 affect?
CVE-2026-101023 affects gitea. Severity is critical (CVSS 9.1). 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 b
How urgent is CVE-2026-101023?
Priority 44/100. Critical severity; Remotely exploitable, no login, no user action
Software pages
Related CVEs
- CVE-2026-101027 HIGH 7.7 UPGRADE When `[migrations] ALLOWED_DOMAINS` was configured, a hostname matching the allow list was accepted without ch
- CVE-2026-101029 MEDIUM 4.3 UPGRADE Gitea's repository migration and pull mirror egress checks could be bypassed with a hostname that returns mult
- CVE-2026-103059 CRITICAL 9.1 UPGRADE When Gitea's built-in SSH server is enabled (`START_SSH_SERVER = true`), the presented public key was looked u
- CVE-2026-103667 MEDIUM 5.4 UPGRADE Gitea's container registry served blob downloads with a `Content-Type` taken from the media type declared in p
- CVE-2026-103670 HIGH 7.5 UPGRADE When a Gitea Actions run was inserted, older runs in the same workflow-level concurrency group were cancelled