CVE-2024-21538
A public proof of concept exists; no exploitation attested.
- Published2024-11-08
- Fixed in7.0.5 · 6.0.6
- WeaknessCWE-1333
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Versions of the package cross-spawn before 6.0.6, from 7.0.0 and before 7.0.5 are vulnerable to Regular Expression Denial of Service (ReDoS) due to improper input sanitization. An attacker can increase the CPU usage and crash the program by crafting a very large and well crafted string.
Timeline
dates in UTC- 2024-11-0805:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-21538?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-21538?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
CISA-ADP · OSV| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 7.0 | < 7.0.5 | 7.0.5 | CISA-ADP |
| 7.0 | ≥ 7.0.0, < 7.0.5 | 7.0.5 | OSV |
| 6.0 | < 6.0.6 | 6.0.6 | OSV |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.14.18 Bug Fix Update
Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.15.14 Bug Fix Update
Red Hat Security Advisory: Migration Toolkit for Containers (MTC) 1.8.7 security and bug fix update
Red Hat Security Advisory: RHOAI 2.16.0 - Red Hat OpenShift AI
Red Hat Security Advisory: RHOAI 2.16.0 - Red Hat OpenShift AI
Red Hat Security Advisory: RHODF-4.18-RHEL-9 enhancement, bug fix and security update
5 more advisories
Fix
- Update Cross-spawn to 7.0.5 · 6.0.6
- Vendor fix Red Hat Product Security RHSA-2025:8551 · 9 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
- Vendor fix Red Hat Product Security RHSA-2025:3397 · 1 productFor Red Hat OpenShift AI 2.16.0 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
- Vendor fix Red Hat Product Security RHSA-2025:2652 · 9 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
- Vendor fix Red Hat Product Security RHSA-2024:6122 · 662 productsFor OpenShift Container Platform 4.18 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.18/release_notes/o…
- Vendor fix Red Hat Product Security RHSA-2024:6121 · 191 productsFor OpenShift Container Platform 4.18 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.18/release_notes/ocp-4-1…
- Vendor fix Red Hat Product Security RHSA-2025:1448 · 1 productFor Red Hat OpenShift AI 2.17.0 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.redhat.com/en/documentation/red_hat_openshift_ai/
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 4.0 vector
- 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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Published
- 2024-11-08
- Last Modified
- 2026-07-28
- NVD status
- Deferred
Frequently asked questions
What is CVE-2024-21538?
Is CVE-2024-21538 actively exploited?
What is the CVSS score for CVE-2024-21538?
Running cross-spawn? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.