CVE-2026-33146: Docmost is open-source collaborative wiki and documentation software

Routine

MEDIUM 4.3UPGRADE

CVE-2026-33146 is a medium-severity flaw (CVSS 4.3) affecting docmost. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Docmost is open-source collaborative wiki and documentation software. An authorization bypass vulnerability in versions 0.70.0 through 0.70.2 exposes restricted child page titles and text snippets through the public search endpoint (`POST /api/search/share-search`) for publicly shared content. This flaw allows unauthenticated users to enumerate and retrieve content that should remain hidden from public share viewers, leading to a confidentiality

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-285
Published	2026-04-14
Last modified	2026-07-24

Publisher (CNA): GitHub, Inc. · Vendor: docmost

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-14 22:16 UTCPublished CVE record published
2026-07-24 23:10 UTCUpdated Record last modified

docmost docmost UPGRADE

Affected: >= 0.70.0 and < 0.70.3

Fixed in: 0.70.3

Safe to downgrade to: a release before 0.70.0

1. Check installed version

apt-cache policy docmost || rpm -q docmost || docmost --version

2. UPGRADE to 0.70.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade docmost

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade docmost

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.70.0 (Debian / Ubuntu)

apt-cache madison docmost sudo apt install docmost=<VERSION_BEFORE_0.70.0> sudo apt-mark hold docmost

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list docmost sudo dnf downgrade docmost-<VERSION_BEFORE_0.70.0> sudo dnf versionlock add docmost

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33146?

docmost: upgrade to 0.70.3. Exact commands for each OS are on this page.

Is CVE-2026-33146 being exploited?

CVE-2026-33146 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33146 affect?

CVE-2026-33146 affects docmost. Severity is medium (CVSS 4.3). Docmost is open-source collaborative wiki and documentation software. An authorization bypass vulnerability in versions 0.70.0 through 0.70.2 exposes restricted child page titles and text snippets through the public search endpoint (`POST /

How urgent is CVE-2026-33146?

Priority 25/100. Public exploit reference

Related CVEs

CVE-2026-33193 MEDIUM 4.6 UPGRADE Docmost is open-source collaborative wiki and documentation software
CVE-2026-34212 MEDIUM 5.4 UPGRADE Docmost is open-source collaborative wiki and documentation software
CVE-2026-34213 MEDIUM 5.4 UPGRADE Docmost is open-source collaborative wiki and documentation software
CVE-2026-40927 MEDIUM 5.4 UPGRADE Docmost is open-source collaborative wiki and documentation software

References

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