Summary
OS Command Injection in gogs
Workarounds
N/A
References
N/A
For more information
If you have any questions or comments about this advisory, please post on #6555.
Impact
The malicious user is able to update a crafted config file into repository's .git directory with to gain SSH access to the server. All installations with repository upload enabled (default) are affected.
Untrusted input reaches a shell command, allowing arbitrary commands to run on the host. Typical impact: code execution in the application's environment.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Repository file updates are prohibited to its .git directory. Users should upgrade to 0.12.8 or the latest 0.13.0+dev.
Frequently Asked Questions
- What is CVE-2021-32546? CVE-2021-32546 is a critical-severity OS command injection vulnerability in gogs.io/gogs (go), affecting versions < 0.12.8. It is fixed in 0.12.8. Untrusted input reaches a shell command, allowing arbitrary commands to run on the host.
- Which versions of gogs.io/gogs are affected by CVE-2021-32546? gogs.io/gogs (go) versions < 0.12.8 is affected.
- Is there a fix for CVE-2021-32546? Yes. CVE-2021-32546 is fixed in 0.12.8. Upgrade to this version or later.
- Is CVE-2021-32546 exploitable, and should I be worried? Whether CVE-2021-32546 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2021-32546 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2021-32546? Upgrade
gogs.io/gogsto 0.12.8 or later.