{"id":"CVE-2024-21536","title":"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","summary":"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 …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400"],"vendor":"chimurai","product":"http-proxy-middleware","affected":["http-proxy-middleware < 2.0.7","http-proxy-middleware >= 3.0.0, < 3.0.3"],"patched":["http-proxy-middleware 3.0.3"],"published":"2024-10-19","updated":"2026-08-01","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-21536","references":[{"url":"https://gist.github.com/mhassan1/28be67266d82a53708ed59ce5dc3c94a","label":"report@snyk.io"},{"url":"https://github.com/chimurai/http-proxy-middleware/commit/0b4274e8cc9e9a2c5a06f35fbf456ccfcebc55a5","label":"report@snyk.io"},{"url":"https://github.com/chimurai/http-proxy-middleware/commit/788b21e4aff38332d6319557d4a5b1b13b1f9a22","label":"report@snyk.io"},{"url":"https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-8309098","label":"report@snyk.io"},{"url":"https://security.snyk.io/vuln/SNYK-JS-HTTPPROXYMIDDLEWARE-8229906","label":"report@snyk.io"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-21536.json"},{"url":"https://access.redhat.com/security/cve/CVE-2024-21536"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2319884"},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-21536"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-21536"},{"url":"https://access.redhat.com/errata/RHSA-2025:3928"},{"url":"https://access.redhat.com/errata/RHSA-2025:3929"},{"url":"https://access.redhat.com/errata/RHSA-2025:3930"},{"url":"https://access.redhat.com/errata/RHSA-2025:8510"},{"url":"https://access.redhat.com/errata/RHSA-2024:9627"},{"url":"https://access.redhat.com/errata/RHBA-2024:9054"},{"url":"https://access.redhat.com/errata/RHSA-2025:8551"},{"url":"https://access.redhat.com/errata/RHSA-2025:8544"},{"url":"https://access.redhat.com/errata/RHSA-2025:8479"},{"url":"https://access.redhat.com/errata/RHSA-2025:8059"},{"url":"https://access.redhat.com/errata/RHSA-2025:4511"},{"url":"https://access.redhat.com/errata/RHSA-2025:1249"},{"url":"https://access.redhat.com/errata/RHBA-2024:11265"},{"url":"https://access.redhat.com/errata/RHSA-2025:8512"},{"url":"https://access.redhat.com/errata/RHSA-2025:9294"},{"url":"https://access.redhat.com/errata/RHSA-2025:8233"},{"url":"https://access.redhat.com/errata/RHSA-2025:10853"},{"url":"https://access.redhat.com/errata/RHSA-2024:10917"},{"url":"https://access.redhat.com/errata/RHSA-2024:10962"},{"url":"https://access.redhat.com/errata/RHSA-2024:11256"},{"url":"https://access.redhat.com/errata/RHSA-2024:11255"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.01034,"epssPercentile":0.62305,"ingestedAt":"2026-08-01T17:13:12.775Z","slug":"CVE-2024-21536","body":"## Overview\n\nVersions 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.\n\n## Affected\n\n- `http-proxy-middleware < 2.0.7`\n- `http-proxy-middleware >= 3.0.0, < 3.0.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `http-proxy-middleware 3.0.3`\n\n## Vendor advisories\n\n- **RHSA-2025:3928** · Red Hat · fixed in: RHACS 4.5 for RHEL 8 · released 2025-04-15 · [advisory](https://access.redhat.com/errata/RHSA-2025:3928)\n- **RHSA-2025:3929** · Red Hat · fixed in: RHACS 4.6 for RHEL 8 · released 2025-04-15 · [advisory](https://access.redhat.com/errata/RHSA-2025:3929)\n- **RHSA-2025:3930** · Red Hat · fixed in: RHACS 4.7 for RHEL 8 · released 2025-04-15 · [advisory](https://access.redhat.com/errata/RHSA-2025:3930)\n- **RHSA-2025:8510** · Red Hat · fixed in: 8Base-RHMTC-1.8 · released 2025-06-04 · [advisory](https://access.redhat.com/errata/RHSA-2025:8510)\n- **RHSA-2024:9627** · Red Hat · fixed in: RHOSSM 2.6 for RHEL 8, RHOSSM 2.6 for RHEL 9 · released 2024-11-14 · [advisory](https://access.redhat.com/errata/RHSA-2024:9627)\n- **RHBA-2024:9054** · Red Hat · fixed in: Red Hat Developer Hub 1.3 for RHEL 9 · released 2024-11-11 · [advisory](https://access.redhat.com/errata/RHBA-2024:9054)\n- **RHSA-2025:8551** · Red Hat · fixed in: RHODF 4.14 for RHEL 9 · released 2025-06-04 · [advisory](https://access.redhat.com/errata/RHSA-2025:8551)\n- **RHSA-2025:8544** · Red Hat · fixed in: RHODF 4.15 for RHEL 9 · released 2025-06-04 · [advisory](https://access.redhat.com/errata/RHSA-2025:8544)\n- **RHSA-2025:8479** · Red Hat · fixed in: RHODF 4.16 for RHEL 9 · released 2025-06-04 · [advisory](https://access.redhat.com/errata/RHSA-2025:8479)\n- **RHSA-2025:8059** · Red Hat · fixed in: RHODF 4.17 for RHEL 9 · released 2025-05-21 · [advisory](https://access.redhat.com/errata/RHSA-2025:8059)\n- **RHSA-2025:4511** · Red Hat · fixed in: RHODF 4.18 for RHEL 9 · released 2025-05-06 · [advisory](https://access.redhat.com/errata/RHSA-2025:4511)\n- **Red Hat VEX** · Moderate · affected: Cryostat 3, Logging Subsystem for Red Hat OpenShift, Migration Toolkit for Applications 7, Node HealthCheck Operator, OpenShift Pipelines, OpenShift Service Mesh 2, … · no fix planned: Logging Subsystem for Red Hat OpenShift, Migration Toolkit for Applications 7, Node HealthCheck Operator, OpenShift Pipelines, … · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-21536.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}