CVE-2026-120427: zmister2016 MrDoc

MrDoc through 1.1.1 Missing Authorization via get_doctemp Template Read

CVSS 5.3 MediumEPSS 0.0025 · 16th percentile

Published by the CVE Program (CNA: VulnCheck) at 2 Nov 2026, 14:28 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
zmister2016	MrDoc pkg:github/zmister2016/MrDoc	affected 1.1.1 and earlier semver Other versions: unaffected

Identifiers

CVE-2026-120427

CNA

VulnCheck

Weakness (CWE)

CWE-639

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.3	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
4.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0025, the 16th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

2 Nov 2026, 14:28 UTC Confirmed by the CVE List
2 Nov 2026, 14:37 UTC First seen by agentprime
2 Nov 2026, 15:17 UTC Confirmed by NVD

Sources

References from the CNA

github.com/zmister2016/MrDoc/commit/ec93679499fb6ea88ce868ffc9169fe025917095 patch
github.com/zmister2016/MrDoc/blob/v1.1.1/app_doc/views.py#L1983-L1996 technical-description
github.com/zmister2016/MrDoc/releases/tag/v1.1.1 release-notes
hackmd.io/@hieund/mrdoc-get-doctemp-missing-owner-check-cross-user-template-read technical-description
www.vulncheck.com/advisories/mrdoc-through-1.1.1-missing-authorization-via-get-doctemp-template-read third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.