{"cve":"CVE-2026-110642","nvd":{"published":"2026-10-14T15:17:17.627","modified":"2026-10-15T14:47:05.720","status":"Deferred","description":"xhtml2pdf before 0.2.19 contains an OS command injection vulnerability in pisa.startViewer() that allows attackers to execute commands by interpolating unescaped file names into os.system. Attackers can supply an input file whose name contains a double quote and shell metacharacters, which runs OS commands as the invoking user when the pisa tool is used with -s/--start-viewer.","cvss_v4":{"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.5},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-78"],"references":["https://github.com/xhtml2pdf/xhtml2pdf/blob/v0.2.18/xhtml2pdf/pisa.py#L393-L400","https://github.com/xhtml2pdf/xhtml2pdf/commit/f86380dad15b3a6810201d08755a3ee6b19d5063","https://github.com/xhtml2pdf/xhtml2pdf/pull/835","https://github.com/xhtml2pdf/xhtml2pdf/releases/tag/v0.2.19","https://www.vulncheck.com/advisories/xhtml2pdf-before-0.2.19-os-command-injection-via-startviewer-file-name"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:59:28.494260111+00:00"},"epss":{"cve":"CVE-2026-110642","score":0.0113,"percentile":0.6618,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}