Missing security headers in Action Pack on non-HTML responses

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.4 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

• CVE-2024-28103: 0.66% estimated exploitation activity in the next 30 days; percentile 51.52 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Permissions-Policy is Only Served on HTML Content-Type The application configurable Permissions-Policy is only served on responses with an HTML related Content-Type. This has been assigned the CVE identifier CVE-2024-28103. Versions Affected: = 6.1.0 Not affected: < 6.1.0 Fixed Versions: 6.1.7.8, 7.0.8.4, and 7.1.3.4 Impact ------ Responses with a non-HTML Content-Type are not serving the configured Permissions-Policy. There are certain non-HTML Content-Types that would benefit from having the Permissions-Policy enforced. Releases -------- The fixed releases are available at the normal locations. Workarounds ----------- N/A Patches ------- To aid users who aren't able to upgrade immediately we have provided patches for the supported release series in accordance with our maintenance policy regarding security issues. They are in git-am format and consist of a single changeset. 6-1-include-permissions-policy-header-on-non-html.patch - Patch for 6.1 series…

Published by the source

4 Jun 2024, 22:26 UTC

Last modified by the source

6 Dec 2024, 15:32 UTC

Source last checked

26 Oct 2026, 15:48 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-fwhr-88qx-h9g7

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# Patch Next advisory brief: CVE-2024-28103

Advisory: Missing security headers in Action Pack on non-HTML responses
IDs: CVE-2024-28103, GHSA-fwhr-88qx-h9g7
Record: https://patchnext.com/advisories/cve-2024-28103 (revision 1, source checked 26 Oct 2026, 15:48 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: actionpack 7.2.0.beta2, 7.1.3.4, 7.0.8.4, 6.1.7.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- RubyGems actionpack: affected >= 6.1.0, < 6.1.7.8; >= 7.0.0, < 7.0.8.4; >= 7.1.0, < 7.1.3.4; >= 7.2.0.beta1, <= 7.2.0.beta1; fixed in 7.2.0.beta2, 7.1.3.4, 7.0.8.4, 6.1.7.8

## Suggested inspection (read-only)
- RubyGems actionpack: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on actionpack.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-fwhr-88qx-h9g7 (GitHub-reviewed advisory GHSA-fwhr-88qx-h9g7 lists affected ranges: RubyGems actionpack >=6.1.0 =7.0.0 =7.1.0 =7.2.0.beta1 <=7.2.0.beta1)

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