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CVE-2024-21536

Chimurai Http-proxy-middleware denial of service

7.5 HIGHPublic exploitEPSS 1.03%
  1. Published19 Oct 2024

Description

Versions of the package http-proxy-middleware before 2.0.7, from 3.0.0 and before 3.0.3 are vulnerable to Denial of Service (DoS) due to an UnhandledPromiseRejection error thrown by micromatch. An attacker could kill the Node.js process and crash the server by making requests to certain paths.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Chimurai Http-proxy-middleware≥ 3.0.0 < 3.0.3 · < 2.0.7

Remediation

Fixed in
Chimurai Http-proxy-middleware≥ 3.0.3

References

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Frequently asked

Is CVE-2024-21536 being actively exploited?

CVE-2024-21536 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.03%.

How severe is CVE-2024-21536?

CVE-2024-21536 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 1.03% probability of exploitation.

Which products are affected by CVE-2024-21536?

Affected products include Chimurai Http-proxy-middleware.

How do I fix CVE-2024-21536?

Upgrade affected software to a fixed version, for example Chimurai Http-proxy-middleware 3.0.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-21536 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.