CVE-2026-20909: Code.gitea.io/gitea Gitea Exposes Tracked Time Entries Vulnerability

MODERATE
Advisory Identifier: GHSA-fhq3-p242-2qpf
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CVSS 5.3
CWE-284
Published
Advisory Summary

CVE-2026-20909 is a MODERATE (CVSS 5.3) gitea exposes tracked time entries vulnerability (CWE-284: Improper Access Control) affecting Code.gitea.io/gitea libraries in the Go ecosystem. The issue involves gitea exposes tracked time entries without repository authorization. Remediation is available by upgrading affected packages to version 1.25.5.

CVE-2026-20909 at a Glance

CVE Identifier CVE-2026-20909
GHSA Identifier GHSA-fhq3-p242-2qpf
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-284: Improper Access Control
Affected Product Code.gitea.io/gitea
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

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

How to Fix CVE-2026-20909

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: 1.25.5 
Upgrade code.gitea.io/gitea to 1.25.5
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-2026-20909, 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 1.25.5), 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-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. 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 versions before 1.25.5 have insufficient permission checks when listing tracked time entries.

CVE-2026-20909 Affected Code.gitea.io/gitea Versions

1 component(s)
Fixed Versions:
1.25.5
Product / Package Ecosystem Affected Versions Fixed Version
code.gitea.io/gitea
golang/code.gitea.io/gitea
Go
< 1.25.5
1.25.5

References

NVD — CVE-2026-20909 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20909
Code.gitea.io/gitea Source Repository REPOSITORY
https://github.com/go-gitea/gitea/pull/36662
Code.gitea.io/gitea Source Repository REPOSITORY
https://github.com/go-gitea/gitea/pull/36744
Security Fix Commit FIX COMMIT
https://github.com/go-gitea/gitea/commit/00566cc953dba772d2f38aa475d235fead461605
Security Fix Commit FIX COMMIT
https://github.com/go-gitea/gitea/commit/ed57c70176a6cac63f48ddf6b0d5f4f72cfea963
blog.gitea.com/release-of-1.25.5 WEB
https://blog.gitea.com/release-of-1.25.5
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/v1.25.5

Frequently Asked Questions

What is CVE-2026-20909?
CVE-2026-20909 is a security vulnerability in Code.gitea.io/gitea involving Gitea exposes tracked time entries without repository authorization under CWE-284: Improper Access Control.
Which Code.gitea.io/gitea versions are affected?
Affected versions include releases prior to 1.25.5 across affected packages: code.gitea.io/gitea.
What version fixes CVE-2026-20909?
Upgrading to 1.25.5 (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 1.25.5. Upgrade your dependency to 1.25.5 or later.
What is the CVSS score of CVE-2026-20909?
CVE-2026-20909 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2026-20909?
CVE-2026-20909 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check Go dependencies for CVE-2026-20909?
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-fhq3-p242-2qpf",
  "modified" : "2026-09-01T17:17:32Z",
  "published" : "2026-07-03T21:31:37Z",
  "aliases" : [ "CVE-2026-20909" ],
  "summary" : " Gitea exposes tracked time entries without repository authorization",
  "details" : "Gitea versions before 1.25.5 have insufficient permission checks when listing tracked time entries.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "code.gitea.io/gitea"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.25.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-20909"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/pull/36662"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/pull/36744"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/commit/00566cc953dba772d2f38aa475d235fead461605"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/commit/ed57c70176a6cac63f48ddf6b0d5f4f72cfea963"
  }, {
    "type" : "WEB",
    "url" : "https://blog.gitea.com/release-of-1.25.5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/go-gitea/gitea"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/releases/tag/v1.25.5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-284" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-01T17:17:32Z",
    "nvd_published_at" : "2026-07-03T21:16:56Z"
  }
}