CVE-2026-72792 SiYuan before v3.7.4 Information Disclosure via Tag API
Unauthenticated attackers can access tag labels and counts from password-protected documents via the tag API, leaking internal terminology.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72792?
CVE-2026-72792 is a medium-severity vulnerability in siyuan-note siyuan, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/tag/getTag endpoint that returns tag labels and occurrence counts from password-protected documents to unauthenticated readers. Attackers can enumerate tag vocabulary and internal terminology from password-protected documents by calling the tag endpoint without providing the document's publish password.
Weakness: CWE-863
Which versions are affected by CVE-2026-72792?
3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel.
| Package | Affected | Fixed in |
|---|---|---|
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260726002639-4515fa257cfa |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260726002639-4515fa257cfa |
github.com/siyuan-note/siyuan/kernel Go | All versions | 0.0.0-20260726002639-4515fa257cfa |
How do I fix CVE-2026-72792?
Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260726002639-4515fa257cfa or later.
Is CVE-2026-72792 being exploited?
There is no known exploitation of CVE-2026-72792 in the wild and no public exploit code.
Sources
Also known as GHSA-mp7r-57w4-5qm3, GO-2026-6427.