{"id":"CVE-2026-13762","aliases":["EUVD-2026-40220","GHSA-9jjc-h3c2-fw2v"],"status":"published","title":"HTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF","description":"Inconsistent interpretation of HTTP/2 requests in Amazon CloudFront with AWS WAF enabled might allow remote actors to bypass AWS WAF managed rule body inspection via crafted HTTP/2 requests that fragment the request body across frames so that only a partial body is inspected.\n\n\n\nThis issue was remediated server-side. No customer action is required.","severity":{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00626,"percentile":0.50526,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-444"],"published":"2026-06-29T20:03:06Z","modified":"2026-10-25T21:10:00Z","products":[{"vendor":"amazon","product":"cloudfront"},{"vendor":"aws","product":"amazon cloudfront"}],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-048-aws/","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13762"},{"url":"https://aws.amazon.com/security/security-bulletins/2026-048-aws"},{"url":"https://github.com/advisories/GHSA-9jjc-h3c2-fw2v"}],"sources":{"cve":[{"id":"CVE-2026-13762","title":"HTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF","description":"Inconsistent interpretation of HTTP/2 requests in Amazon CloudFront with AWS WAF enabled might allow remote actors to bypass AWS WAF managed rule body inspection via crafted HTTP/2 requests that fragment the request body across frames so that only a partial body is inspected.\n\n\n\nThis issue was remediated server-side. No customer action is required.","status":"published","published":"2026-06-29T20:03:06.858Z","modified":"2026-06-29T20:51:27.34Z","cvss":[{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"high","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T14:19:50.24628Z"}],"euvd":[{"id":"EUVD-2026-40220","description":"Inconsistent interpretation of HTTP/2 requests in Amazon CloudFront with AWS WAF enabled might allow remote actors to bypass AWS WAF managed rule body inspection via crafted HTTP/2 requests that fragment the request body across frames so that only a partial body is inspected.\n\n\n\nThis issue was remediated server-side. No customer action is required.","status":"published","published":"2026-06-29T20:03:06Z","modified":"2026-06-29T20:51:27Z","cvss":[{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"high"}],"updated_at":"2026-11-02T18:20:22.124605Z"}],"ghsa":[{"id":"GHSA-9jjc-h3c2-fw2v","title":"Inconsistent interpretation of HTTP/2 requests in Amazon CloudFront with AWS WAF enabled might...","description":"Inconsistent interpretation of HTTP/2 requests in Amazon CloudFront with AWS WAF enabled might allow remote actors to bypass AWS WAF managed rule body inspection via crafted HTTP/2 requests that fragment the request body across frames so that only a partial body is inspected.\n\n\n\nThis issue was remediated server-side. No customer action is required.","status":"published","published":"2026-06-29T21:32:12Z","modified":"2026-06-29T21:32:12Z","cvss":[{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T15:09:04.017394Z"}],"nvd":[{"id":"CVE-2026-13762","description":"Inconsistent interpretation of HTTP/2 requests in Amazon CloudFront with AWS WAF enabled might allow remote actors to bypass AWS WAF managed rule body inspection via crafted HTTP/2 requests that fragment the request body across frames so that only a partial body is inspected.\n\n\n\nThis issue was remediated server-side. No customer action is required.","status":"published","published":"2026-06-29T20:17:33.123Z","modified":"2026-10-25T21:10:00.77Z","cvss":[{"version":"4.0","score":7.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-444"],"updated_at":"2026-11-02T14:12:26.508751Z"}]}}