CVE-2026-77361: obsidian-tc symlink path mismatch bypasses read ACL restrictions
The-40-Thieves · obsidian-tc
Affected: The-40-Thieves obsidian-tc · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 1% of scored CVEs
DescriptionCVE.org
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, read access-control list (ACL) checks use a lexical vault-relative path while containment checks use the resolved path. An in-vault symlink under an allowed glob that resolves into a denied folder can therefore bypass the read ACL and expose files in the denied folder. Exploitation requires an out-of-band-planted symlink and does not permit an escape from the vault root. Version 1.3.1 fixes the vulnerability by applying ACL checks to the resolved vault-relative path.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- The-40-Thieves · obsidian-tc< 1.3.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- The-40-Thieves
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-77361 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-59cwe.mitre.org
- github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-cgithub.com
- github.com/The-40-Thieves/obsidian-tc/pull/76github.com
- github.com/The-40-Thieves/obsidian-tc/commit/c81d1687e2cfec98a0dgithub.com
- github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1github.com