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🛡️ CVE-2026-52801 — gogs

🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-20 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Gogs has the ability to import local repositories via Mirror Settings

Summary

The Gogs Mirror Settings functionality provide an alternative way from the well protected New Migration functionality for any authenticated users to import local repositories. This issue stems from a lack of validation of SaveAddress function.

Details

Here is the function implementation of the secure New Migration functionality.

<img width="1200" height="755" alt="image" src="https://github.com/user-attachments/assets/a6c2f307-715e-4451-bbc1-7bd934d56f96" />

Here is the function implementation of the Mirror Settings without any validation.

<img width="1200" height="477" alt="image" src="https://github.com/user-attachments/assets/a11c41b8-1d08-499c-bce6-ab40844211d7" />

PoC

The New Migration feature correctly blocked my attempt to import a local repository.

<img width="1200" height="1008" alt="image" src="https://github.com/user-attachments/assets/dfc5aa3f-1cc4-427d-b7fe-274363c83c4e" />

But if I create a normal migration with a valid repository.

<img width="1200" height="1006" alt="image" src="https://github.com/user-attachments/assets/c96b356e-8ca9-4e79-a69b-ff14593c0cac" />

Then, I could use the Mirror Settings feature under the Repository Settings sync a local repository.

<img width="1200" height="476" alt="image" src="https://github.com/user-attachments/assets/9105475c-ae68-4d93-96d5-a3ec356deba7" />

Here is the result after the sync.

<img width="1200" height="533" alt="image" src="https://github.com/user-attachments/assets/1df76642-3e55-4493-a422-f7f0619b463d" />

Impact

Users can import local repositories from the server's filesystem, which allows accessing any repository the git user has access to. There is also a potential issue of blind SSRF.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2026-52801 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2026-52801 is recorded against 2 packages.

  • gogs.io/gogs
  • unknown

Timeline and source

Published on 25 June 2026 and last revised on 21 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)

Other advisories for this package

gogs.io/gogs has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-20: Improper Input Validation) in other software:

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2026-06-25
Updated 2026-08-20
Modified 2026-07-21
Fix URL N/A

Affected Packages

Software From version Fixed in
gogs.io/gogs — —
unknown — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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