PatchTheCVECVE-2026-103667: Gitea's container registry served blob downloads with a `Content-Type` taken from the media type declared in p
CVE-2026-103667 is a medium-severity flaw (CVSS 5.4) affecting gitea. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Gitea's container registry served blob downloads with a `Content-Type` taken from the media type declared in pushed image manifests, without a `Content-Disposition` or restrictive content security policy. A user who can push container images can publish a blob containing HTML and JavaScript with a `text/html` 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
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.4 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.2% (top 91%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2026-10-06 |
| Last modified | 2026-10-15 |
Last updated 2026-10-15 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-103667?
gitea: upgrade to 28.0.0. Exact commands for each OS are on this page.
Is CVE-2026-103667 being exploited?
CVE-2026-103667 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-103667 affect?
CVE-2026-103667 affects gitea. Severity is medium (CVSS 5.4). Gitea's container registry served blob downloads with a `Content-Type` taken from the media type declared in pushed image manifests, without a `Content-Disposition` or restrictive content security policy. A user who can push container image
How urgent is CVE-2026-103667?
Priority 21/100. No elevated risk signals yet.
Software pages
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