CVE-2026-72794: siyuan versions before v3.7.4 expose the session cookie signing key through the /api/system/getConf endpoint t

Q: How do I fix CVE-2026-72794?

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

Q: Is CVE-2026-72794 being exploited?

CVE-2026-72794 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-2026-72794 affect?

CVE-2026-72794 affects affected software. Severity is high (CVSS 8.6). siyuan versions before v3.7.4 expose the session cookie signing key through the /api/system/getConf endpoint to unauthenticated users in publish mode. Attackers can retrieve the CookieKey value and forge valid session cookies to impersonate

Q: How urgent is CVE-2026-72794?

Priority 47/100. High severity; CISA SSVC: public proof of concept; Remotely exploitable, no login, no user action

This month

HIGH 8.6REMOTE

CVE-2026-72794 is a high-severity flaw (CVSS 8.6) 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 expose the session cookie signing key through the /api/system/getConf endpoint to unauthenticated users in publish mode. Attackers can retrieve the CookieKey value and forge valid session cookies to impersonate users or gain administrative access.

Why this priority

High severity
CISA SSVC: public proof of concept
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-522
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 · 0.0.0-20260725123945-77421530be4a · vulnerable: < 0.0.0-20260725123945-77421530be4a · source

go get github.com/siyuan-note/siyuan/kernel@v0.0.0-20260725123945-77421530be4a go list -m github.com/siyuan-note/siyuan/kernel

Fedora 46 · fooyin · FIXED · 0.14.1-6.fc46 · FEDORA-2026-a597ed324c · source

sudo dnf upgrade --advisory=FEDORA-2026-a597ed324c

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-34fj-mwm6-fjfg

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-2026-72794?

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

Is CVE-2026-72794 being exploited?

CVE-2026-72794 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-2026-72794 affect?

CVE-2026-72794 affects affected software. Severity is high (CVSS 8.6). siyuan versions before v3.7.4 expose the session cookie signing key through the /api/system/getConf endpoint to unauthenticated users in publish mode. Attackers can retrieve the CookieKey value and forge valid session cookies to impersonate

How urgent is CVE-2026-72794?

Priority 47/100. High severity; CISA SSVC: public proof of concept; Remotely exploitable, no login, no user action

References

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