{"id":"CVE-2026-92987","title":"roxmltree through 0.21.1 performs quadratic-time attribute and namespace validation during XML parsing without limits on attribute count","summary":"roxmltree through 0.21.1 performs quadratic-time attribute and namespace validation during XML parsing without limits on attribute count. Attackers can craft XML documents with tens of thousands of attributes on a single element to consu…","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-407","CWE-1050"],"vendor":"RazrFalcon","product":"roxmltree","affected":["roxmltree <= 0.21.1"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T16:18:35.340","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92987","references":[{"url":"https://github.com/RazrFalcon/roxmltree","label":"disclosure@vulncheck.com"},{"url":"https://github.com/RazrFalcon/roxmltree/blob/v0.21.1/src/lib.rs#L751-L755","label":"disclosure@vulncheck.com"},{"url":"https://github.com/RazrFalcon/roxmltree/blob/v0.21.1/src/parse.rs#L1014-L1020","label":"disclosure@vulncheck.com"},{"url":"https://github.com/RazrFalcon/roxmltree/issues/153","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/roxmltree-through-0.21.1-denial-of-service-via-quadratic-parsing","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92987.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-92987"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536068"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92987"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92987"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-17T15:32:00.518891Z"},"ingestedAt":"2026-09-17T15:20:39.003Z","epss":0.00353,"epssPercentile":0.28941,"slug":"CVE-2026-92987","body":"## Overview\n\nroxmltree through 0.21.1 performs quadratic-time attribute and namespace validation during XML parsing without limits on attribute count. Attackers can craft XML documents with tens of thousands of attributes on a single element to consume excessive CPU time and cause denial of service.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Confidential Compute Attestation, Logging Subsystem for Red Hat OpenShift, Red Hat Enterprise Linux 10, Red Hat Trusted Artifact Signer, Red Hat Trusted Profile Analyzer · no fix planned: Red Hat Trusted Profile Analyzer, Confidential Compute Attestation, Logging Subsystem for Red Hat OpenShift, Red Hat Enterprise Linux 10, … · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92987.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}