{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-101899", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-28T15:55:37.906Z", "datePublished": "2026-10-13T15:49:51.223Z", "dateUpdated": "2026-10-14T15:18:02.684Z"}, "containers": {"cna": {"title": "Axios: CIDR-form NO_PROXY entries are ignored, causing proxy exclusion bypass for internal IP ranges", "problemTypes": [{"descriptions": [{"cweId": "CWE-693", "lang": "en", "description": "CWE-693: Protection Mechanism Failure", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/axios/axios/security/advisories/GHSA-44g4-m2mj-wpvx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/axios/axios/security/advisories/GHSA-44g4-m2mj-wpvx"}, {"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": "2026-10-13T15:49:51.223Z"}, "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 treats the NO_PROXY CIDR form as a textual hostname suffix instead of evaluating the network range. A request targets an address covered by a CIDR entry in NO_PROXY while a proxy is configured. The CIDR bypass rule is not matched, so the request is sent through the configured proxy. For plaintext HTTP, the proxy can observe and modify URLs, headers, and bodies; for HTTPS, it can observe connection metadata and CONNECT requests. This issue is fixed in version 1.20.0."}], "source": {"advisory": "GHSA-44g4-m2mj-wpvx", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/axios/axios/security/advisories/GHSA-44g4-m2mj-wpvx", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-14T15:15:50.544437Z", "id": "CVE-2026-101899", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"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": "2026-10-14T15:18:02.684Z"}}]}}

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{"bugzilla": {"description": "axios: Axios: Information disclosure via improper CIDR proxy bypass handling", "id": "2550659", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550659"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-1025", "details": ["A flaw was found in Axios. This vulnerability allows information disclosure when network traffic intended to bypass a proxy is improperly routed through it. Axios fails to parse Classless Inter-Domain Routing (CIDR) notation in proxy bypass lists as IP address ranges, treating them as plain text hostnames instead. As a result, an adversary with access to the configured proxy server can intercept or inspect sensitive request data and connection metadata intended for internal network services."], "name": "CVE-2026-101899", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana12.4", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana13.1", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "grafana13.2", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-10-13T15:49:51Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-101899\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-101899\nhttps://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39a\nhttps://github.com/axios/axios/pull/11141\nhttps://github.com/axios/axios/releases/tag/v1.20.0\nhttps://github.com/axios/axios/security/advisories/GHSA-44g4-m2mj-wpvx"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.15.0,1.20.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "axios", "source": "cna", "vendor": "axios"}, "product": "axios", "vendor": "axios"}], "created": "2026-10-13T18:15:16.479835+00:00", "updated": "2026-10-13T18:45:15.561041+00:00", "vendors": ["axios", "axios$PRODUCT$axios"]}