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Medium, CVSS 5.5amended

dom-iterator code execution vulnerability

CVE-2024-21541GHSA-jrvm-mcxc-mf6m

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (dom-iterator 1.0.1), redeploy, then verify what is actually installed.

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

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
5.5 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P · score source
EPSS
  • CVE-2024-21541: 1.08% estimated exploitation activity in the next 30 days; percentile 65.22 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Versions of the package dom-iterator before 1.0.1 are vulnerable to Arbitrary Code Execution due to use of the Function constructor without complete input sanitization. Function generates a new function body and thus care must be given to ensure that the inputs to Function are not attacker-controlled. The risks involved are similar to that of allowing attacker-controlled input to reach eval.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-jrvm-mcxc-mf6m

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-jrvm-mcxc-mf6m

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-2024-21541

Advisory: dom-iterator code execution vulnerability
IDs: CVE-2024-21541, GHSA-jrvm-mcxc-mf6m
Record: https://patchnext.com/advisories/cve-2024-21541 (revision 3, source checked 26 Oct 2026, 12:31 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: dom-iterator 1.0.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm dom-iterator: affected <= 1.0.0; fixed in 1.0.1

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

## 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 dom-iterator.
- 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-jrvm-mcxc-mf6m (OSV record GHSA-jrvm-mcxc-mf6m lists affected ranges: npm dom-iterator >=0 <1.0.1 (fixed))
- Verified: https://github.com/advisories/GHSA-jrvm-mcxc-mf6m (GitHub-reviewed advisory GHSA-jrvm-mcxc-mf6m lists affected ranges: npm dom-iterator >=0 <=1.0.0)

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