CVE-2026-77362 (GCVE-0-2026-77362)
Vulnerability from cvelistv5 – Published: 2026-10-13 14:00 – Updated: 2026-10-13 14:50
VLAI
EPSS
VEX
Title
obsidian-tc bridge tools expose data outside the read ACL
Summary
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, bridge tools do not consistently apply the read access-control list (ACL) to every returned field. The tasks_filter tool exposes group counts derived from denied notes, makemd_query passes unfiltered sibling result fields through, and list_templates exposes template paths and parsed user-function bodies without a read-whitelist check. An authenticated caller can consequently infer or read data from notes outside the caller's read ACL. Version 1.3.1 fixes the vulnerability by filtering path-attributable fields and applying the read whitelist to list_templates.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:50 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/75 | 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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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