CVE-2021-32546
OS Command Injection in gogs
Missing input validation in internal/db/repo_editor.go in Gogs before 0.12.8 allows an attacker to execute code remotely. An unprivileged attacker (registered user) can overwrite the Git configuration in his repository. This leads to Remote Command Execution, because that configuration can contain an option such as sshCommand, which is executed when a master branch is a remote branch (using an ssh:// URI). The remote branch can also be configured by editing the Git configuration file. One can create a new file in a new repository, using the GUI, with "" as its name, and then rename this file to .git/config with the custom configuration content (and then save it).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Missing input validation in internal/db/repo_editor.go in Gogs before 0.12.8 allows an attacker to execute code remotely. An unprivileged attacker (registered user) can overwrite the Git configuration in his repository. This leads to Remote Command Execution, because that configuration can contain an option such as sshCommand, which is executed when a master branch is a remote branch (using an ssh:// URI). The remote branch can also be configured by editing the Git configuration file. One can create a new file in a new repository, using the GUI, with "" as its name, and then rename this file to .git/config with the custom configuration content (and then save it).
- Record
CVE-2021-32546- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Missing input validation in internal/db/repo_editor.go in Gogs before 0.12.8 allows an attacker to execute code remotely. An unprivileged attacker (registered user) can overwrite the Git configuration in his repository. This leads to Remote Command Execution, because that configuration can contain an option such as sshCommand, which is executed when a master branch is a remote branch (using an ssh:// URI). The remote branch can also be configured by editing the Git configuration file. One can create a new file in a new repository, using the GUI, with "" as its name, and then rename this file to .git/config with the custom configuration content (and then save it).
- Record
CVE-2021-32546- Updated
- 2026-11-02
EUVDEUVD-2022-5932 No score
Missing input validation in internal/db/repo_editor.go in Gogs before 0.12.8 allows an attacker to execute code remotely. An unprivileged attacker (registered user) can overwrite the Git configuration in his repository. This leads to Remote Command Execution, because that configuration can contain an option such as sshCommand, which is executed when a master branch is a remote branch (using an ssh:// URI). The remote branch can also be configured by editing the Git configuration file. One can create a new file in a new repository, using the GUI, with "" as its name, and then rename this file to .git/config with the custom configuration content (and then save it).
- Record
EUVD-2022-5932- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-56j7-2pm8-rgmx No score
OS Command Injection in gogs
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.
Patches
Repository file updates are prohibited to its .git directory. Users should upgrade to 0.12.8 or the latest 0.13.0+dev.
Workarounds
N/A
References
N/A
For more information
If you have any questions or comments about this advisory, please post on #6555.
- Record
GHSA-56j7-2pm8-rgmx- Weakness
- CWE-78
- Updated
- 2026-11-02
OSV
Missing input validation in internal/db/repo_editor.go in Gogs before 0.12.8 allows an attacker to execute code remotely. An unprivileged attacker (registered user) can overwrite the Git configuration in his repository. This leads to Remote Command Execution, because that configuration can contain an option such as sshCommand, which is executed when a master branch is a remote branch (using an ssh:// URI). The remote branch can also be configured by editing the Git configuration file. One can create a new file in a new repository, using the GUI, with "" as its name, and then rename this file to .git/config with the custom configuration content (and then save it).
- Record
CVE-2021-32546- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-56j7-2pm8-rgmx No score
OS Command Injection in gogs
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.
Patches
Repository file updates are prohibited to its .git directory. Users should upgrade to 0.12.8 or the latest 0.13.0+dev.
Workarounds
N/A
References
N/A
For more information
If you have any questions or comments about this advisory, please post on #6555.
- Record
GHSA-56j7-2pm8-rgmx- Weakness
- CWE-78
- Updated
- 2026-11-02
OSVGO-2022-0471 No score
OS Command Injection in gogs in gogs.io/gogs
OS Command Injection in gogs in gogs.io/gogs
- Record
GO-2022-0471- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gogs.io/gogsGo |
before 0.12.8 | 0.12.8 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-32546 is a high vulnerability (CVSS 8.8) in Gogs, published May 31, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.20%, the 82nd percentile. Fixed in gogs.io/gogs 0.12.8.
References
github.com/gogs/gogs/releases
nvd.nist.gov/vuln/detail/CVE-2021-32546