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Medium, CVSS 5.3amended

Regular Expression Denial of Service in bleach

CVE-2014-8881GHSA-mvmf-cvfx-qg55

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm bleach

    Affected
    every version
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

All versions of the bleach package are vulnerable to a regular expression denial of service attack when certain types of input are passed into the sanitize function. Recommendation The bleach package is not currently maintained, and has not seen an update since 2014. To mitigate this issue, it is necessary to use an alternative module that is actively maintained and provides similar functionality. There are multiple modules fitting this criteria available on npm..

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-mvmf-cvfx-qg55

  2. Revision 1 · created ·

    Published from osv record GHSA-mvmf-cvfx-qg55

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2014-8881

Advisory: Regular Expression Denial of Service in bleach
IDs: CVE-2014-8881, GHSA-mvmf-cvfx-qg55
Record: https://patchnext.com/advisories/cve-2014-8881 (revision 2, source checked 26 Oct 2026, 12:08 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm bleach: affected every version

## Suggested inspection (read-only)
- `npm ls bleach --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on bleach.
- 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://osv.dev/vulnerability/GHSA-mvmf-cvfx-qg55 (OSV record GHSA-mvmf-cvfx-qg55 lists affected ranges: npm bleach >=0.0.0)
- Verified: https://github.com/advisories/GHSA-mvmf-cvfx-qg55 (GitHub-reviewed advisory GHSA-mvmf-cvfx-qg55 lists affected ranges: npm bleach >=0.0.0)

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