CVE-2026-77364 (GCVE-0-2026-77364)
Vulnerability from cvelistv5 – Published: 2026-10-12 17:52 – Updated: 2026-10-15 13:36
VLAI
EPSS
VEX
Title
obsidian-tc fail-open default ACL exposes Obsidian control-directory secrets
Summary
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, undefined readPaths and writePaths settings allow all paths, strictReadDefault does not protect direct requests, and the .obsidian, .git, and .trash control directories are excluded only during enumeration. An authenticated caller can directly read sensitive files such as .obsidian/plugins/*/data.json, potentially exposing plugin API keys, Obsidian Sync passwords, and other in-vault data. Version 1.3.1 fixes the vulnerability by denying the control directories by default and enforcing strictReadDefault on direct request paths.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 13:36 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/The-40-Thieves/obsidian-tc/sec… | x_refsource_CONFIRM |
| https://github.com/The-40-Thieves/obsidian-tc/pull/73 | x_refsource_MISC |
| https://github.com/The-40-Thieves/obsidian-tc/com… | x_refsource_MISC |
| https://github.com/The-40-Thieves/obsidian-tc/rel… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| The-40-Thieves | obsidian-tc |
Affected:
< 1.3.1
|
guessed |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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