{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101906","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-09-28T15:55:37.907Z","datePublished":"2026-09-28T17:32:40.772Z","dateUpdated":"2026-09-28T19:15:12.274Z"},"containers":{"cna":{"title":"Axios: ReDoS (O(N²)) in shouldBypassProxy host normalization, reachable via untrusted redirect Location","problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1333","lang":"en","description":"CWE-1333: Inefficient Regular Expression Complexity","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/axios/axios/security/advisories/GHSA-mghh-pgcx-3jjj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/axios/axios/security/advisories/GHSA-mghh-pgcx-3jjj"},{"name":"https://github.com/axios/axios/pull/11141","tags":["x_refsource_MISC"],"url":"https://github.com/axios/axios/pull/11141"},{"name":"https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a","tags":["x_refsource_MISC"],"url":"https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a"},{"name":"https://github.com/axios/axios/releases/tag/v1.20.0","tags":["x_refsource_MISC"],"url":"https://github.com/axios/axios/releases/tag/v1.20.0"}],"affected":[{"vendor":"axios","product":"axios","versions":[{"version":">= 1.15.0, < 1.20.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-28T17:32:40.772Z"},"descriptions":[{"lang":"en","value":"Axios is a promise-based HTTP client for the browser and Node.js. From 1.15.0 until 1.20.0, Axios shouldBypassProxy applies a quadratic trailing-dot regular expression to redirect hostnames. HTTP_PROXY or HTTPS_PROXY is configured, NO_PROXY or no_proxy is non-empty, redirects are followed, and a crafted redirect Location contains many dots followed by a non-dot character. Hostname.replace(/.+$/, '') backtracks quadratically while processing the crafted redirect hostname. Synchronous regular-expression processing can block the Node.js event loop and cause denial of service. This issue is fixed in version 1.20.0."}],"source":{"advisory":"GHSA-mghh-pgcx-3jjj","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/axios/axios/security/advisories/GHSA-mghh-pgcx-3jjj","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-28T19:15:05.850494Z","id":"CVE-2026-101906","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-28T19:15:12.274Z"}}]}}