CVE-2026-72796: SiYuan before v3.7.4 contains an access control bypass vulnerability where static-file routes in the server mu

Q: How do I fix CVE-2026-72796?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Q: Is CVE-2026-72796 being exploited?

CVE-2026-72796 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-72796 affect?

CVE-2026-72796 affects affected software. Severity is medium (CVSS 5.8). SiYuan before v3.7.4 contains an access control bypass vulnerability where static-file routes in the server mux bypass publish-access controls enforced on the REST API. Attackers with publish reader tokens or anonymous access in disabled-au

Q: How urgent is CVE-2026-72796?

Priority 32/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.8REMOTE

CVE-2026-72796 is a medium-severity flaw (CVSS 5.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SiYuan before v3.7.4 contains an access control bypass vulnerability where static-file routes in the server mux bypass publish-access controls enforced on the REST API. Attackers with publish reader tokens or anonymous access in disabled-auth mode can read templates, snippets, and export artifacts by directly accessing static routes that lack the same restrictions as their REST API counterparts.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 72%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-08-12
Last modified	2026-10-24

Publisher (CNA): VulnCheck

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-08-12 20:17 UTCPublished CVE record published
2026-10-24 15:10 UTCUpdated Record last modified

Exact fixes by distribution

Go · github.com/siyuan-note/siyuan/kernel · FIXED · 0.0.0-20260725122641-34be6c0bb073 · vulnerable: < 0.0.0-20260725122641-34be6c0bb073 · source

go get github.com/siyuan-note/siyuan/kernel@v0.0.0-20260725122641-34be6c0bb073 go list -m github.com/siyuan-note/siyuan/kernel

Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source

sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/siyuan-note/siyuan/security/advisories/GHSA-fgmr-7w36-9qfq

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-2026-72796?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-72796 being exploited?

CVE-2026-72796 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-2026-72796 affect?

CVE-2026-72796 affects affected software. Severity is medium (CVSS 5.8). SiYuan before v3.7.4 contains an access control bypass vulnerability where static-file routes in the server mux bypass publish-access controls enforced on the REST API. Attackers with publish reader tokens or anonymous access in disabled-au

How urgent is CVE-2026-72796?

Priority 32/100. Remotely exploitable, no login, no user action

References

← Back to latest CVEs