{"basis":"claimed","id":"CVE-2026-40175","name":"Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain","vendorProject":"axios","product":"axios","publishedAt":"2026-04-10","cvss":{"score":4.8,"severity":"MEDIUM","version":"3.1"},"exploited":null,"epss":{"score":0.01949,"percentile":0.80218,"date":"2026-11-02"},"coverage":{"cloudflare":{"status":"blocks","firstOn":"2026-06-09","daysToRule":60},"aws":{"status":"none","firstOn":null,"daysToRule":null},"azure":{"status":"none","firstOn":null,"daysToRule":null},"google":{"status":"none","firstOn":null,"daysToRule":null},"fastly":{"status":"no_history","firstOn":null,"daysToRule":null},"f5":{"status":"none","firstOn":null,"daysToRule":null},"akamai":{"status":"no_source","firstOn":null,"daysToRule":null},"crs":{"status":"none","firstOn":null,"daysToRule":null}},"title":"Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain","description":"Axios is a promise based HTTP client for the browser and Node.js. Versions prior to 1.15.0 and 0.3.1 are vulnerable to a specific gadget-style attack chain in which prototype pollution in a third-party dependency may be leveraged to inject unsanitized header values into outbound requests. This vulnerability is fixed in 1.15.0 and 0.3.1.","cwes":["CWE-113","CWE-444","CWE-918"],"vendors":[{"vendor":"cloudflare","status":"blocks","basis":"claimed","firstOn":"2026-06-09","firstIsNew":true,"daysToRule":60,"daysAtMost":null,"freePlan":false,"claims":[{"id":"f6b2daafa5075789b940dfe973b0355ed764eb0292600d78258056fc4cbbce10","cve_id":"CVE-2026-40175","vendor":"cloudflare","product":"Cloudflare Managed Ruleset","rule_id":"b4f88cb767874def810edd0b387cf935","rule_name":"Axios - Prototype Pollution - CVE:CVE-2026-40175","change":"new","default_action":"Block","published_on":"2026-06-09","source_url":"https://developers.cloudflare.com/changelog/post/2026-06-09-waf-release/","source_title":"WAF Release - 2026-06-09","excerpt":"Axios - Prototype Pollution - CVE:CVE-2026-40175. Previous action: Log. New action: Block. This is a new detection.","first_seen_at":"2026-11-02T21:00:15.176Z"}]},{"vendor":"aws","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"azure","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"google","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"fastly","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"f5","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"akamai","status":"no_source","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"crs","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]}],"updatedAt":"2026-11-02T21:17:16.518Z","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total"},"measured":[],"social":{"total":0,"first_seen":null,"daily":[{"day":"2026-10-21","posts":0},{"day":"2026-10-22","posts":0},{"day":"2026-10-23","posts":0},{"day":"2026-10-24","posts":0},{"day":"2026-10-25","posts":0},{"day":"2026-10-26","posts":0},{"day":"2026-10-27","posts":0},{"day":"2026-10-28","posts":0},{"day":"2026-10-29","posts":0},{"day":"2026-10-30","posts":0},{"day":"2026-10-31","posts":0},{"day":"2026-11-01","posts":0},{"day":"2026-11-02","posts":0},{"day":"2026-11-03","posts":0}],"top_posts":[],"exploit_repositories":[]}}