Remote code execution via diffpatch Git hook
Published Aug 26, 2026 · Updated Aug 26, 2026
Code injection in Gitea 1.17 through 1.27.0 allows remote authenticated users to execute shell commands through the diffpatch API. Applying the same attacker-controlled patch twice in a shared bare clone makes Git's three-way fallback write an executable post-index-change hook under $GIT_DIR, where Git runs it as the Gitea service account. Default open registration lets remote attackers obtain repository write access; exploitation also requires Git 2.32 or later and writable, executable temporary storage.
Summary
What happened
Code injection in Gitea 1.17 through 1.27.0 allows remote authenticated users to execute shell commands through the diffpatch API. Applying the same attacker-controlled patch twice in a shared bare clone makes Git's three-way fallback write an executable post-index-change hook under $GIT_DIR, where Git runs it as the Gitea service account. Default open registration lets remote attackers obtain repository write access; exploitation also requires Git 2.32 or later and writable, executable temporary storage.
The record
- CVE
- CVE-2026-60004
- Published
- Aug 26, 2026
- Updated
- Aug 26, 2026
- Vendor
- Gitea
- Product
- Gitea
- Classifications
- CWE-94, T1059
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 26, 2026CVE publishedPublication date reported by the CVE source.
- Aug 26, 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.
- Affected versionversion=1.17 <1.27.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- gitea_diffpatch_rce_poc.pyproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- CISA Known Exploited Vulnerabilities listingknown exploited catalog
Technologies
Your stack
See the directory against your own environment.
Your stack
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