CVE-2026-73609: SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the getBookmarkLabels endpoin

Q: How do I fix CVE-2026-73609?

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

Q: Is CVE-2026-73609 being exploited?

CVE-2026-73609 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-2026-73609 affect?

CVE-2026-73609 affects affected software. Severity is medium (CVSS 5.8). SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the getBookmarkLabels endpoint that returns all bookmark labels in the workspace without publish-access filtering. Anonymous readers and publish-mode readers c

Q: How urgent is CVE-2026-73609?

Priority 31/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.8REMOTE

CVE-2026-73609 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 versions before v3.7.4 contain an information disclosure vulnerability in the getBookmarkLabels endpoint that returns all bookmark labels in the workspace without publish-access filtering. Anonymous readers and publish-mode readers can obtain the complete bookmark vocabulary across the workspace, disclosing subject matter and organizational information from inaccessible documents.

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	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-08-13
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

2026-08-13 12:17 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 · 0.0.0-20260812083335-251596fc0de2 · vulnerable: < 0.0.0-20260812083335-251596fc0de2 · source

go get github.com/siyuan-note/siyuan/kernel@v0.0.0-20260812083335-251596fc0de2 go list -m github.com/siyuan-note/siyuan/kernel

Fedora 46 · gum · FIXED · 2.0.2-1.fc46 · FEDORA-2026-da0d6dd894 · source

sudo dnf upgrade --advisory=FEDORA-2026-da0d6dd894

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-2026-73609?

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

Is CVE-2026-73609 being exploited?

CVE-2026-73609 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-2026-73609 affect?

CVE-2026-73609 affects affected software. Severity is medium (CVSS 5.8). SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the getBookmarkLabels endpoint that returns all bookmark labels in the workspace without publish-access filtering. Anonymous readers and publish-mode readers c

How urgent is CVE-2026-73609?

Priority 31/100. Remotely exploitable, no login, no user action

References

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