Is there a public exploit for CVE-2026-126264?

No public exploit for CVE-2026-126264 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-126264?

CVE-2026-126264 scores CVSS 8.3 (v4.0), rated high.

What does CVE-2026-126264 affect?

CVE-2026-126264 affects siyuan-note SiYuan.

8.3 High

SiYuan before 3.8.9 contains an information disclosure vulnerability that allows authenticated Reader users to retrieve credential-named…

CVE-2026-126264

SiYuan before 3.8.9 contains an information disclosure vulnerability that allows authenticated Reader users to retrieve credential-named widget files by bypassing the sensitive-path guard in getFile. Attackers can request paths like /data/widgets/ /credentials.json for publish-referenced widgets to obtain API keys, tokens, or other stored secrets.

Assessment

CVSS: 8.3 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 13 November 2026
Last updated: 13 November 2026
Affected: siyuan-note · SiYuan
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

At the source

EUVD (ENISA)

References

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