CVE-2025-68939: Code.gitea.io/gitea Gitea Allows Attackers To Add Vulnerability

HIGH
Advisory Identifier: GHSA-263q-5cv3-xq9g
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CVSS 8.2
CWE-424
Published
Advisory Summary

CVE-2025-68939 is a HIGH (CVSS 8.2) gitea allows attackers to add vulnerability (CWE-424: Improper Protection of Alternate Path) affecting Code.gitea.io/gitea libraries in the Go ecosystem. The issue involves gitea allows attackers to add attachments with forbidden file extensions. Remediation is available in the latest vendor maintenance releases.

CVE-2025-68939 at a Glance

CVE Identifier CVE-2025-68939
GHSA Identifier GHSA-263q-5cv3-xq9g
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-424: Improper Protection of Alternate Path
Affected Product Code.gitea.io/gitea
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.2

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

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

How to Fix CVE-2025-68939

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

code.gitea.io/gitea fixed: Latest secure release 
Upgrade code.gitea.io/gitea to Latest secure release
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 code.gitea.io/gitea

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-68939, inspect your project dependencies for Code.gitea.io/gitea:

inspect dependencies for code.gitea.io/gitea

Analyze the terminal output to locate any version of Code.gitea.io/gitea in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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-424: Improper Protection of Alternate Path, where the product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources. In Code.gitea.io/gitea, 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

Gitea before 1.23.0 allows attackers to add attachments with forbidden file extensions by editing an attachment name via an attachment API.

CVE-2025-68939 Affected Code.gitea.io/gitea Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
code.gitea.io/gitea
golang/code.gitea.io/gitea
Go

References

NVD — CVE-2025-68939 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-68939
Code.gitea.io/gitea Source Repository REPOSITORY
https://github.com/go-gitea/gitea/pull/32151
blog.gitea.com/release-of-1.23.0 WEB
https://blog.gitea.com/release-of-1.23.0
Code.gitea.io/gitea Source Repository REPOSITORY
https://github.com/go-gitea/gitea
Code.gitea.io/gitea Release RELEASE
https://github.com/go-gitea/gitea/releases/tag/v1.23.0

Frequently Asked Questions

What is CVE-2025-68939?
CVE-2025-68939 is a security vulnerability in Code.gitea.io/gitea involving Gitea allows attackers to add attachments with forbidden file extensions under CWE-424: Improper Protection of Alternate Path.
Which Code.gitea.io/gitea versions are affected?
Affected versions include releases prior to current release patches across affected packages: code.gitea.io/gitea.
What version fixes CVE-2025-68939?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is code.gitea.io/gitea affected?
Yes, code.gitea.io/gitea is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2025-68939?
CVE-2025-68939 has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L.
What CWE is associated with CVE-2025-68939?
CVE-2025-68939 is classified under CWE-424: Improper Protection of Alternate Path (The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources.).
How can I check Go dependencies for CVE-2025-68939?
Run the dependency tree command: 'inspect dependencies for code.gitea.io/gitea'. 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-263q-5cv3-xq9g",
  "modified" : "2025-12-26T19:12:02Z",
  "published" : "2025-12-26T03:30:15Z",
  "aliases" : [ "CVE-2025-68939" ],
  "summary" : "Gitea allows attackers to add attachments with forbidden file extensions",
  "details" : "Gitea before 1.23.0 allows attackers to add attachments with forbidden file extensions by editing an attachment name via an attachment API.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "code.gitea.io/gitea"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 1.23.0"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-68939"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/pull/32151"
  }, {
    "type" : "WEB",
    "url" : "https://blog.gitea.com/release-of-1.23.0"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/go-gitea/gitea"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/releases/tag/v1.23.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-424" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-12-26T19:12:02Z",
    "nvd_published_at" : "2025-12-26T03:15:50Z"
  }
}