How severe is CVE-2026-89430?

CVE-2026-89430 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-89430 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-89430?

CVE-2026-89430 affects Gitea. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-89430?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-89430 published?

CVE-2026-89430 was published on 2026-10-06 and last updated on 2026-10-13.

CVE-2026-89430

CVE-2026-89430 is a high-severity vulnerability in Gitea with a CVSS 3.x base score of 8.1. 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-367.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-367
Affected product: Gitea
Published: 2026-10-06
Last modified: 2026-10-13

Description

Gitea validated a push mirror's remote address against the `[migrations]` allow and block lists only when the mirror was created. Each synchronization passed the stored address directly to `git push`, so a name that later resolved to a blocked or internal address was still reached. A user with administrator access to a repository, which includes repositories they create themselves, could aim push mirror synchronization at internal Git services and force-push the repository's contents to them.

Frequently asked questions

What is CVE-2026-89430?: Gitea validated a push mirror's remote address against the `[migrations]` allow and block lists only when the mirror was created. Each synchronization passed the stored address directly to `git push`, so a name that later resolved to a blocked or internal address was still reached. A user with administrator access to a repository, which includes repositories they create themselves, could aim push mirror synchronization at internal Git services and force-push the repository's contents to them.
How severe is CVE-2026-89430?: CVE-2026-89430 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-89430 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-89430?: CVE-2026-89430 affects Gitea. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-89430?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-89430 published?: CVE-2026-89430 was published on 2026-10-06 and last updated on 2026-10-13.

References

Affected products (1)

cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*

More vulnerabilities in Gitea

CVE-2026-94205 — Critical (CVSS 9.8): Gitea Actions decided whether a fork pull request run needed approval based on the user who triggered the event rather…
CVE-2026-73278 — Critical (CVSS 9.8): Gitea's OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account's only…
CVE-2026-60004 — Critical (CVSS 9.8): Gitea before 1.27.1 allows remote code execution via the diffpatch API through Git hook installation.
CVE-2022-42968 — Critical (CVSS 9.8): Gitea before 1.17.3 does not sanitize and escape refs in the git backend. Arguments to git commands are mishandled.
CVE-2021-45331 — Critical (CVSS 9.8): An Authentication Bypass vulnerability exists in Gitea before 1.5.0, which could let a malicious user gain privileges.…
CVE-2021-45330 — Critical (CVSS 9.8): An issue exsits in Gitea through 1.15.7, which could let a malicious user gain privileges due to client side cookies…

All CVEs affecting Gitea →

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Browse all CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

117.24.243.99 (ipv4-addr)