CVE-2026-52809 Gogs: Password-reset tokens use account-activation lifetime, ignoring RESET_PASSWORD_CODE_LIVES
Attackers can exploit password-reset tokens beyond the configured expiration time because the system incorrectly uses the account-activation lifetime instead of the reset password lifetime.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-52809?
CVE-2026-52809 is a medium-severity vulnerability in gogs, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Gogs is an open source self-hosted Git service. Prior to 0.14.3, password-reset tokens are generated using conf.Auth.ActivateCodeLives (the account-activation lifetime), not conf.Auth.ResetPasswordCodeLives. The token lifetime is baked into the token itself at generation time and is re-extracted from the token at verification time, making RESET_PASSWORD_CODE_LIVES irrelevant to actual enforcement. When an administrator configures a shorter reset window (e.g., 10 minutes) for compliance or security reasons, reset tokens remain exploitable for the full activation lifetime instead, while the reset email falsely advertises the shorter expiry. This vulnerability is fixed in 0.14.3.
Which versions are affected by CVE-2026-52809?
3 open source packages ship an affected version, including gogs.io/gogs.
| Package | Affected | Fixed in |
|---|---|---|
gogs.io/gogs Go | All versions | None |
gogs.io/gogs Go | All versions | 0.14.3 |
gogs.io/gogs Go | All versions | 0.14.3 |
How do I fix CVE-2026-52809?
Upgrade gogs.io/gogs to 0.14.3 or later.
Is CVE-2026-52809 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-52809 exists.
Sources
Also known as GHSA-5c3f-6486-3g7g, GO-2026-5140.