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Vulnerabilities

Vulnerability · CVE-2026-103667

Gitea container registry stored XSS through blob media type

Published Oct 6, 2026 · catalog updated Oct 16, 2026 · Gitea container registry stored

Check if you run it

No confirmed exploitation is on record for CVE-2026-103667. EPSS is 0.19%. Act only if a listed version of Gitea container registry stored is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Gitea container registry stored).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Advisory link
Affected products
Bitnami gitea · cpe gitea/gitea

Gitea's container registry served blob downloads with a taken from the media type declared in pushed image manifests, without a or restrictive content security policy. A user who can push container images can publish a blob containing HTML and JavaScript with a media type. When a victim who is authenticated to the instance opens the blob URL in a browser, the script runs on the Gitea origin and can perform actions as the victim, such as creating API tokens.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Bitnami gitea0 → 28.0.0
  • cpe gitea/giteaversion unspecified

How to fix CVE-2026-103667

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-103667. EPSS is 0.19%. Act only if a listed version of Gitea container registry stored is installed.

Which versions are affected?

Compare what you have installed with 0 → 28.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.19%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 6, 2026 · NIST NVD

    Detected

    Gitea's container registry served blob downloads with a taken from the media type declared in pushed image manifests, without a or restrictive content security policy. A user who can push container images can publish a blob containing HTML and JavaScript with a media type. When a victim who is authenticated to the instance opens the blob URL in a browser, the script runs on the Gitea origin and ca

  2. Oct 15, 2026 · NIST NVD

    Updated

    Gitea's container registry served blob downloads with a taken from the media type declared in pushed image manifests, without a or restrictive content security policy. A user who can push container images can publish a blob containing HTML and JavaScript with a media type. When a victim who is authenticated to the instance opens the blob URL in a browser, the script runs on the Gitea origin and ca

  3. Oct 16, 2026 · GitHub Advisory Database

    Fix available

    gitea fixed in 28.0.0

  4. Oct 16, 2026 · GitHub Advisory Database

    Fix available

    gitea fixed in 28.0.0

  5. Oct 16, 2026 · GitHub Advisory Database

    Updated

    Gitea's container registry served blob downloads with a taken from the media type declared in pushed image manifests, without a or restrictive content security policy. A user who can push container images can publish a blob containing HTML and JavaScript with a media type. When a victim who is authenticated to the instance opens the blob URL in a browser, the script runs on the Gitea origin and ca

Sources

  • CVE.orgVulnerability recordCVE-2026-103667

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-103667

    30-day exploitation probability 0.2%

    first.org
  • GitHub Advisory DatabasePackage advisoryGHSA-7cq7-4v93-8wjm

    GitHub Advisory Database record mirrored by OSV.

    github.com
  • NIST NVDVulnerability recordCVE-2026-103667

    Gitea's container registry served blob downloads with a taken from the media type declared in pushed image manifests, without a or restrictive content security policy. A user who can push container images can publish a blob containing HTML and

    nvd.nist.gov
  • OpenSSF OSV / OSV ScannerPackage advisoryBIT-gitea-2026-103667

    Gitea container registry stored XSS through blob media type

    osv.dev

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.