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HIGH

CVE-2026-110642

CVSS v3

7.8

HIGH

EPSS Score

1.1 %

exploit probability, as of 2026-10-16

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2026-110642 Red Hat Product Security2 known affected

    xhtml2pdf: xhtml2pdf: Arbitrary command execution via crafted file names

    quay/quay-rhel8 as a component of Red Hat Quay 3 · quay/quay-rhel9 as a component of Red Hat Quay 3

Full record on NVD

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.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2026-10-14
Last Modified
2026-10-15

Frequently asked questions

What is CVE-2026-110642?

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.

Is CVE-2026-110642 actively exploited?

Active exploitation of CVE-2026-110642 has not been confirmed. Its EPSS score was 1.1% on 2026-10-16, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-110642?

CVE-2026-110642 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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