CVE-2026-110647
HIGH 8.5Turnpress through 0.4.2 contains an OS command injection vulnerability that allows attackers to execute shell commands by supplying .docx files with crafted names. The convertDocxToHtml function in src/converter.ts invokes pandoc through execa with shell:true, so shell metacharacters in the --docx path run with the victim's privileges during convert or create.
Severe if exploited (CVSS 8.5), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
1.0%chance of exploitation in 30 days · 64th percentile
Impact if exploited
8.5CVSS 4.0 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ⚠Access: Requires local access to the host
- ✓Privileges: No account or privileges required
- ⚠User interaction: Succeeds with passive user activity
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSS 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
References and research data (JSON)
All CVSS metrics
- HIGH 8.5 v4.0 · CNA Primary
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 - HIGH 7.8 v3.1 · CNA Primary
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - HIGH 8.5 v4.0 · NVD Secondary
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/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 - HIGH 7.8 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
Patches & mitigations
- https://github.com/jinghaihan/turnpress/pull/2 CVE record · VulnCheck · Updated 2026-10-14T14:17:15.770Z
NVD · CVE-2026-110647 · Updated 2026-10-15T14:47:05.720
Advisories
- https://www.vulncheck.com/advisories/turnpress-through-0.4.2-os-command-injection-via-crafted-docx-file-names CVE record · VulnCheck · Updated 2026-10-14T14:17:15.770Z
NVD · CVE-2026-110647 · Updated 2026-10-15T14:47:05.720 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-101275 EUVD · EUVD-2026-101275
Technical & other
- https://github.com/jinghaihan/turnpress/blob/v0.4.2/src/converter.ts#L33-L61 CVE record · VulnCheck · Updated 2026-10-14T14:17:15.770Z
NVD · CVE-2026-110647 · Updated 2026-10-15T14:47:05.720