CVE-2026-26196: Gogs Access Tokens Get Exposed Through Vulnerability

MODERATE
Advisory Identifier: GHSA-x9p5-w45c-7ffc
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CVSS 5.3
CWE-598
Published
Advisory Summary

CVE-2026-26196 is a MODERATE (CVSS 5.3) access tokens get exposed through vulnerability (CWE-598: Use of HTTP Request With Sensitive Query String) affecting Gogs libraries in the Go ecosystem. The issue involves access tokens get exposed through url params in api requests. Remediation is available in the latest vendor maintenance releases.

CVE-2026-26196 at a Glance

CVE Identifier CVE-2026-26196
GHSA Identifier GHSA-x9p5-w45c-7ffc
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-598: Use of HTTP Request With Sensitive Query String
Affected Product Gogs
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:L/I:N/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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-26196

To remediate this vulnerability, upgrade all affected 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: Latest secure release 
Upgrade gogs.io/gogs 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 gogs.io/gogs

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-26196, inspect your project dependencies for Gogs:

inspect dependencies for gogs.io/gogs

Analyze the terminal output to locate any version of Gogs 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-598: Use of HTTP Request With Sensitive Query String, where the web application uses an http method to process a request, but the request includes sensitive information in the query string. In 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 API still accepts tokens in URL parameters such as `token` and `access_token`, which can leak through logs, browser history, and referrers. ### Details A static review shows that the API still checks tokens in the URL query before looking at headers: - internal/context/auth.go reads `c.Query("token")` - internal/context/auth.go falls back to `c.Query("access_token")` - internal/context/auth.go only checks the `Authorization` header when the query token is empty - internal/context/auth.go authenticates using that token and marks the request as token-authenticated Token-authenticated requests are accepted by API routes through `c.IsTokenAuth` checks: - internal/route/api/v1/api.go ### Impact If tokens are sent in URLs such as `/api/v1/user?token=...`, they can leak in logs, browser or shell history, and referrer headers, and can be reused until revoked. ### Recommended Fix - Authentication headers should be used exclusively for token transmission. - Token parameters should be blocked at the proxy or WAF level. - Query strings should be scrubbed from logs. - A strict referrer policy should be set. ### Remediation A fix is available at https://github.com/gogs/gogs/releases/tag/v0.14.2.

CVE-2026-26196 Affected Gogs Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
gogs.io/gogs
golang/gogs.io/gogs
Go
≤ 0.13.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/gogs/gogs/security/advisories/GHSA-x9p5-w45c-7ffc
NVD — CVE-2026-26196 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26196
Gogs Source Repository REPOSITORY
https://github.com/gogs/gogs/pull/8177
Security Fix Commit FIX COMMIT
https://github.com/gogs/gogs/commit/295bfba72993c372e7b338438947d8e1a6bed8fd
Gogs Source Repository REPOSITORY
https://github.com/gogs/gogs
Gogs Release RELEASE
https://github.com/gogs/gogs/releases/tag/v0.14.2

Frequently Asked Questions

What is CVE-2026-26196?
CVE-2026-26196 is a security vulnerability in Gogs involving Access tokens get exposed through URL params in API requests under CWE-598: Use of HTTP Request With Sensitive Query String.
Which Gogs versions are affected?
Affected versions include releases prior to current release patches across affected packages: gogs.io/gogs.
What version fixes CVE-2026-26196?
Upgrading to current release patches (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 Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-26196?
CVE-2026-26196 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:L/I:N/A:N.
What CWE is associated with CVE-2026-26196?
CVE-2026-26196 is classified under CWE-598: Use of HTTP Request With Sensitive Query String (The web application uses an HTTP method to process a request, but the request includes sensitive information in the query string.).
How can I check Go dependencies for CVE-2026-26196?
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-x9p5-w45c-7ffc",
  "modified" : "2026-03-06T00:58:07Z",
  "published" : "2026-03-05T19:50:35Z",
  "aliases" : [ "CVE-2026-26196" ],
  "summary" : "Gogs: Access tokens get exposed through URL params in API requests",
  "details" : "### Summary\n\nThe Gogs API still accepts tokens in URL parameters such as `token` and `access_token`, which can leak through logs, browser history, and referrers.\n\n### Details\n\nA static review shows that the API still checks tokens in the URL query before looking at headers:\n\n  - internal/context/auth.go reads `c.Query(\"token\")`\n  - internal/context/auth.go falls back to `c.Query(\"access_token\")`\n  - internal/context/auth.go only checks the `Authorization` header when the query token is empty\n  - internal/context/auth.go authenticates using that token and marks the request as token-authenticated\n\nToken-authenticated requests are accepted by API routes through `c.IsTokenAuth` checks:\n  - internal/route/api/v1/api.go\n\n### Impact\n\nIf tokens are sent in URLs such as `/api/v1/user?token=...`, they can leak in logs, browser or shell history, and referrer headers, and can be reused until revoked.\n\n### Recommended Fix\n\n- Authentication headers should be used exclusively for token transmission.\n- Token parameters should be blocked at the proxy or WAF level.\n- Query strings should be scrubbed from logs.\n- A strict referrer policy should be set.\n\n### Remediation\n\nA fix is available at https://github.com/gogs/gogs/releases/tag/v0.14.2.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "gogs.io/gogs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.13.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/security/advisories/GHSA-x9p5-w45c-7ffc"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-26196"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/pull/8177"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/commit/295bfba72993c372e7b338438947d8e1a6bed8fd"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gogs/gogs"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/releases/tag/v0.14.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-598" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-05T19:50:35Z",
    "nvd_published_at" : "2026-03-05T19:16:04Z"
  }
}