CVE-2026-52806Public exploitNetwork attack vector

Authenticated RCE via git rebase argument injection

Published Jun 24, 2026 · Updated Jun 24, 2026

Command injection in Gogs before 0.14.3 allows remote authenticated users to execute arbitrary code via a crafted pull request branch. In PullRequest.Merge, the base branch value reaches git rebase without an end-of-options delimiter, so a branch beginning with --exec is parsed as an option and executed by a shell. Exploitation requires repository ownership or write access to a repository with rebase merging enabled and runs code as the Gogs server process user.

CVSS severity9.9
Critical
EPSS probability7.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Gogs before 0.14.3 allows remote authenticated users to execute arbitrary code via a crafted pull request branch. In PullRequest.Merge, the base branch value reaches git rebase without an end-of-options delimiter, so a branch beginning with --exec is parsed as an option and executed by a shell. Exploitation requires repository ownership or write access to a repository with rebase merging enabled and runs code as the Gogs server process user.

The record

CVE
CVE-2026-52806
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Gogs
Product
Gogs
Classifications
CWE-77, T1059, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=< 0.14.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Gogs · Gogsversion=< 0.14.3

Published CVSS scores

9.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

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Your stack

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