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CVE-2026-108358

PhpSpreadsheet: XmlScanner Bypass via ISO-2022 Escape Sequences Allows XXE and Denial of Service

CVSS score

8.8

EPSS probability

—

Risk score

0.9

Published

4 h ago

Vulnerability Timeline (Change History)

CVE-2026-108358 historical changes made to the vulnerability by NVD, CISA and MITRE:

DateActor / SourceAction / DescriptionTypePrevious valueNew value
22.10.2026nvd@nist.govInitial Analysis & CVSS Vector AssignmentCVSS V3.1—CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:L/SI:N/SA:N
22.10.2026CISA CoordinatorSSVC Risk Re-assessmentSSVC / KEVexploitation: noneexploitation: none
22.10.2026MITRE / NVDNew CVE Record Received & IngestedCVE Created—CVE-2026-108358

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Get this vulnerability through the API

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  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-108358"
CVE-2026-108358 · PhpSpreadsheet: XmlScanner Bypass via…