CVE-2026-89430Network attack vectorHinoki check available

Internal Git force-push via stale mirror validation

Published Oct 6, 2026 · Updated Oct 6, 2026

Server-side request forgery in Gitea 1.27.3 and earlier allows remote authenticated users to reach internal Git services through push mirrors. Gitea checks a push mirror's remote address against migration host restrictions when the mirror is created, but later synchronization passes the stored address to git push without checking its newly resolved destination. Repository administrator access, including to a self-created repository, is required; a controlled hostname can then redirect synchronization to an internal Git service and force-push repository contents.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Server-side request forgery in Gitea 1.27.3 and earlier allows remote authenticated users to reach internal Git services through push mirrors. Gitea checks a push mirror's remote address against migration host restrictions when the mirror is created, but later synchronization passes the stored address to git push without checking its newly resolved destination. Repository administrator access, including to a self-created repository, is required; a controlled hostname can then redirect synchronization to an internal Git service and force-push repository contents.

The record

CVE
CVE-2026-89430
Published
Oct 6, 2026
Updated
Oct 6, 2026
Vendor
Gitea
Product
Gitea
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.27.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Gitea · Giteaversion=0 <=1.27.3

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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