CVE-2026-52801: Gogs.io/gogs Gogs Has The Ability To Vulnerability

HIGH
Advisory Identifier: GHSA-wv27-2vqp-j7g5
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CVSS 8.1
CWE-20
Published
Advisory Summary

CVE-2026-52801 is a HIGH (CVSS 8.1) gogs has the ability to vulnerability (CWE-20: Improper Input Validation) affecting Gogs.io/gogs libraries in the Go ecosystem. The issue involves gogs has the ability to import local repositories via mirror settings. Remediation is available by upgrading affected packages to version 0.14.3.

CVE-2026-52801 at a Glance

CVE Identifier CVE-2026-52801
GHSA Identifier GHSA-wv27-2vqp-j7g5
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-20: Improper Input Validation
Affected Product Gogs.io/gogs
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-52801

To remediate this vulnerability, upgrade all affected Gogs.io/gogs dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

gogs.io/gogs fixed: 0.14.3 
Upgrade gogs.io/gogs to 0.14.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for gogs.io/gogs

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-52801, inspect your project dependencies for Gogs.io/gogs:

inspect dependencies for gogs.io/gogs

Analyze the terminal output to locate any version of Gogs.io/gogs in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.14.3), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Gogs.io/gogs, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### 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.

CVE-2026-52801 Affected Gogs.io/gogs Versions

1 component(s)
Fixed Versions:
0.14.3
Product / Package Ecosystem Affected Versions Fixed Version
gogs.io/gogs
golang/gogs.io/gogs
Go
< 0.14.3
0.14.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/gogs/gogs/security/advisories/GHSA-wv27-2vqp-j7g5
NVD — CVE-2026-52801 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52801
Gogs.io/gogs Source Repository REPOSITORY
https://github.com/gogs/gogs/pull/8225
Security Fix Commit FIX COMMIT
https://github.com/gogs/gogs/commit/11e19f28b5c82466fd1689c94344ef4313ee986c
Gogs.io/gogs Source Repository REPOSITORY
https://github.com/gogs/gogs
Gogs.io/gogs Release RELEASE
https://github.com/gogs/gogs/releases/tag/v0.14.3

Frequently Asked Questions

What is CVE-2026-52801?
CVE-2026-52801 is a security vulnerability in Gogs.io/gogs involving Gogs has the ability to import local repositories via Mirror Settings under CWE-20: Improper Input Validation.
Which Gogs.io/gogs versions are affected?
Affected versions include releases prior to 0.14.3 across affected packages: gogs.io/gogs.
What version fixes CVE-2026-52801?
Upgrading to 0.14.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is gogs.io/gogs affected?
Yes, gogs.io/gogs is affected in releases prior to 0.14.3. Upgrade your dependency to 0.14.3 or later.
What is the CVSS score of CVE-2026-52801?
CVE-2026-52801 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2026-52801?
CVE-2026-52801 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Go dependencies for CVE-2026-52801?
Run the dependency tree command: 'inspect dependencies for gogs.io/gogs'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-wv27-2vqp-j7g5",
  "modified" : "2026-07-21T13:36:31Z",
  "published" : "2026-06-23T00:03:43Z",
  "aliases" : [ "CVE-2026-52801" ],
  "summary" : "Gogs has the ability to import local repositories via Mirror Settings",
  "details" : "### Summary\nThe 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.\n\n### Details\nHere is the function implementation of the secure New Migration functionality.\n<img width=\"1200\" height=\"755\" alt=\"image\" src=\"https://github.com/user-attachments/assets/a6c2f307-715e-4451-bbc1-7bd934d56f96\" />\n\nHere is the function implementation of the Mirror Settings without any validation.\n<img width=\"1200\" height=\"477\" alt=\"image\" src=\"https://github.com/user-attachments/assets/a11c41b8-1d08-499c-bce6-ab40844211d7\" />\n\n### PoC\nThe New Migration feature correctly blocked my attempt to import a local repository.\n<img width=\"1200\" height=\"1008\" alt=\"image\" src=\"https://github.com/user-attachments/assets/dfc5aa3f-1cc4-427d-b7fe-274363c83c4e\" />\n\nBut if I create a normal migration with a valid repository.\n<img width=\"1200\" height=\"1006\" alt=\"image\" src=\"https://github.com/user-attachments/assets/c96b356e-8ca9-4e79-a69b-ff14593c0cac\" />\n\nThen, I could use the Mirror Settings feature under the Repository Settings sync a local repository.\n<img width=\"1200\" height=\"476\" alt=\"image\" src=\"https://github.com/user-attachments/assets/9105475c-ae68-4d93-96d5-a3ec356deba7\" />\n\nHere is the result after the sync.\n<img width=\"1200\" height=\"533\" alt=\"image\" src=\"https://github.com/user-attachments/assets/1df76642-3e55-4493-a422-f7f0619b463d\" />\n\n\n### Impact\nUsers 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "gogs.io/gogs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.14.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/security/advisories/GHSA-wv27-2vqp-j7g5"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-52801"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/pull/8225"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/commit/11e19f28b5c82466fd1689c94344ef4313ee986c"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gogs/gogs"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/releases/tag/v0.14.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-23T00:03:43Z",
    "nvd_published_at" : "2026-06-24T21:16:55Z"
  }
}