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CVE-2026-110642

xhtml2pdf before 0.2.19 OS Command Injection via startViewer File Name

8.5 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Passive

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.13%Unchanged since Oct 15, 2026
90%50%10%1%

What each source reports

CVE List Score used 8.5

xhtml2pdf before 0.2.19 OS Command Injection via startViewer File Name

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.

Record
CVE-2026-110642
CVSS 4.0
8.5 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-78
Updated
2026-11-02
EUVDEUVD-2026-101270 8.5

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.

Record
EUVD-2026-101270
CVSS 4.0
8.5 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-p77q-xqj7-2552 8.5

xhtml2pdf before 0.2.19 contains an OS command injection vulnerability in pisa.startViewer() that...

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.

Record
GHSA-p77q-xqj7-2552
CVSS 4.0
8.5 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-78
Updated
2026-11-02
NVD 8.5

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.

Record
CVE-2026-110642
CVSS 4.0
8.5 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-78
Updated
2026-11-02
OSV 8.5

xhtml2pdf before 0.2.19 OS Command Injection via startViewer File Name

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.

Record
CVE-2026-110642
CVSS 4.0
8.5 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-78
Updated
2026-11-02
OSVDEBIAN-CVE-2026-110642 8.5

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.

Record
DEBIAN-CVE-2026-110642
CVSS 4.0
8.5 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
Updated
2026-11-02
OSVUBUNTU-CVE-2026-110642 8.5

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.

Record
UBUNTU-CVE-2026-110642
CVSS 4.0
8.5 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2026:12160-1 No score

python313-xhtml2pdf-0.2.24-1.1 on GA media

These are all security issues fixed in the python313-xhtml2pdf-0.2.24-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12160-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
xhtml2pdf
Debian:12
 All versions, plus listed versions
0.2.15+dfsg-10.2.15+dfsg-20.2.16+dfsg-10.2.17+dfsg-10.2.5-30.2.5-40.2.5-5
 None known
xhtml2pdf
Debian:13
 All versions, plus listed versions
0.2.17+dfsg-1
 None known
xhtml2pdf
Debian:14
 All versions, plus listed versions
0.2.17+dfsg-1
 None known
xhtml2pdf
Ubuntu:18.04:LTS
 All versions, plus listed versions
0.2b-10.2b-20.2.1-1
 None known
xhtml2pdf
Ubuntu:20.04:LTS
 All versions, plus listed versions
0.2.2-30.2.2-3build10.2.2-50.2.4-1
 None known
xhtml2pdf
Ubuntu:22.04:LTS
 All versions, plus listed versions
0.2.4-10.2.4-1ubuntu10.2.5-1
 None known
xhtml2pdf
Ubuntu:24.04:LTS
 All versions, plus listed versions
0.2.5-30.2.5-5
 None known
xhtml2pdf
Ubuntu:26.10
 All versions, plus listed versions
0.2.17+dfsg-1ubuntu2
 None known
xhtml2pdf
Ubuntu:26.04:LTS
 All versions, plus listed versions
0.2.17+dfsg-1ubuntu10.2.17+dfsg-1ubuntu2
 None known
python-xhtml2pdf
openSUSE:Tumbleweed
 before 0.2.24-1.1
0.2.24-1.1

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-110642 is a high vulnerability (CVSS 8.5) in Xhtml2pdf, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.13%, the 66th percentile. Fixed in python-xhtml2pdf 0.2.24-1.1.

References

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