How severe is CVE-2026-52809?

CVE-2026-52809 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-52809 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-52809?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-52809 have an EU (EUVD) identifier?

Yes. CVE-2026-52809 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39079.

When was CVE-2026-52809 published?

CVE-2026-52809 was published on 2026-06-24 and last updated on 2026-06-26.

CVE-2026-52809

CVE-2026-52809 is a medium-severity vulnerability with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-324.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39079
Weakness: CWE-324
Published: 2026-06-24
Last modified: 2026-06-26

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.

Frequently asked questions

What is CVE-2026-52809?: 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.
How severe is CVE-2026-52809?: CVE-2026-52809 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-52809 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-52809?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-52809 have an EU (EUVD) identifier?: Yes. CVE-2026-52809 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39079.
When was CVE-2026-52809 published?: CVE-2026-52809 was published on 2026-06-24 and last updated on 2026-06-26.

References

Other CWE-324 vulnerabilities

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CVE-2025-31123 — High (CVSS 8.7): Zitadel is open-source identity infrastructure software. A vulnerability existed where expired keys can be used to…
CVE-2025-2291 — High (CVSS 8.1): Password can be used past expiry in PgBouncer due to auth_query not taking into account Postgres its VALID UNTIL value,…
CVE-2024-25679 — Medium (CVSS 6.5): In PQUIC before 5bde5bb, retention of unused initial encryption keys allows attackers to disrupt a connection with a…
CVE-2025-33012 — Medium (CVSS 6.3): IBM Db2 10.5.0 through 10.5.11, 11.1.0 through 11.1.4.7, 11.5.0 through 11.5.9, and 12.1.0 through 12.1.3 for Linux…
CVE-2025-48813 — Medium (CVSS 6.3): Use of a key past its expiration date in Virtual Secure Mode allows an authorized attacker to perform spoofing locally.

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