Possible ReDoS vulnerability in plain_text_for_blockquote_node in Action Text

Exploitation

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

CVSS 4.0

6.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U · score source

EPSS

• CVE-2024-47888: 0.98% estimated exploitation activity in the next 30 days; percentile 62.39 (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.

There is a possible ReDoS vulnerability in the plaintextforblockquotenode helper in Action Text. This vulnerability has been assigned the CVE identifier CVE-2024-47888. Impact ------ Carefully crafted text can cause the plaintextforblockquotenode helper to take an unexpected amount of time, possibly resulting in a DoS vulnerability. All users running an affected release should either upgrade or apply the relevant patch immediately. Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Rails 8.0.0.beta1 depends on Ruby 3.2 or greater so is unaffected. Releases -------- The fixed releases are available at the normal locations. Workarounds ----------- Users can avoid calling plaintextforblockquotenode or upgrade to Ruby 3.2 Credits ------- Thanks to oooooooq for the report!

Published by the source

15 Oct 2024, 23:35 UTC

Last modified by the source

31 Oct 2024, 19:35 UTC

Source last checked

26 Oct 2026, 15:48 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-wwhv-wxv9-rpgw

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# Patch Next advisory brief: CVE-2024-47888

Advisory: Possible ReDoS vulnerability in plain_text_for_blockquote_node in Action Text
IDs: CVE-2024-47888, GHSA-wwhv-wxv9-rpgw
Record: https://patchnext.com/advisories/cve-2024-47888 (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 6.6)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: actiontext 7.2.1.1, 7.1.4.1, 7.0.8.5, 6.1.7.9. A vendor fix does not mean a deployment is fixed.

## Affected components
- RubyGems actiontext: affected >= 6.0.0, < 6.1.7.9; >= 7.0.0, < 7.0.8.5; >= 7.1.0, < 7.1.4.1; >= 7.2.0, < 7.2.1.1; fixed in 7.0.8.5, 7.1.4.1, 7.2.1.1, 6.1.7.9

## Suggested inspection (read-only)
- RubyGems actiontext: 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 actiontext.
- 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-wwhv-wxv9-rpgw (GitHub-reviewed advisory GHSA-wwhv-wxv9-rpgw lists affected ranges: RubyGems actiontext >=6.0.0 =7.0.0 =7.1.0 =7.2.0 <7.2.1.1)

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