Is CVE-2026-77361 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-77361 being exploited in the wild.

How severe is CVE-2026-77361?

Medium severity, with a CVSS score of 4.7, published 13 October 2026.

Which products and versions are affected?

obsidian-tc (npm) < 1.3.1, SEMVER:introduced=0,fixed=1.3.1; The-40-Thieves Obsidian-Tc before 1.3.1.

Is there a fix for CVE-2026-77361?

Yes. obsidian-tc (npm): upgrade to 1.3.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-77361 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-77361?

Check whether you run obsidian-tc (npm) or The-40-Thieves Obsidian-Tc at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-77361: obsidian-tc ACL bypass via symlink path resolution

Q: Which products and versions are affected?

obsidian-tc (npm) < 1.3.1, SEMVER:introduced=0,fixed=1.3.1; The-40-Thieves Obsidian-Tc before 1.3.1.

Q: Is there a fix for CVE-2026-77361?

Yes. obsidian-tc (npm): upgrade to 1.3.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-77361 attacked?

It is attacked with local access, in a software library.

Q: Am I affected by CVE-2026-77361?

Check whether you run obsidian-tc (npm) or The-40-Thieves Obsidian-Tc at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-77361 · Severity: medium · CVSS 4.7 · Published 2026-10-13

obsidian-tc is a Model Context Protocol server that governs access to Obsidian note vaults on behalf of AI agents. Before version 1.3.1, an attacker who plants a symbolic link in an allowed folder could bypass read access controls by pointing the symlink to a restricted folder, allowing file exposure without vault root escape. The vulnerability requires pre-existing symlink placement but could leak sensitive notes and data within the vault.

Technologies: obsidian-tc (npm), The-40-Thieves Obsidian-Tc. Vendors: npm, The-40-Thieves.

Quick answers

Is CVE-2026-77361 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-77361 being exploited in the wild.
How severe is CVE-2026-77361?: Medium severity, with a CVSS score of 4.7, published 13 October 2026.
Which products and versions are affected?: obsidian-tc (npm) < 1.3.1, SEMVER:introduced=0,fixed=1.3.1; The-40-Thieves Obsidian-Tc before 1.3.1.
Is there a fix for CVE-2026-77361?: Yes. obsidian-tc (npm): upgrade to 1.3.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-77361 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-77361?: Check whether you run obsidian-tc (npm) or The-40-Thieves Obsidian-Tc at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

obsidian-tc (npm): upgrade to 1.3.1 or later
```
npm install obsidian-tc@1.3.1
```

Technical details

The vulnerability is a path canonicalization bypass in ACL enforcement: read ACL checks evaluated the lexical (as-provided) request path against the allowlist, while containment checks resolved symlinks to their true paths and discarded the result. An in-vault symlink under an allowed glob pattern that resolved to a denied folder would pass the ACL check but reach restricted files. The fix applies ACL checks to the resolved vault-relative path rather than the lexical path, and requires no new filesystem calls beyond what containment checking already performed.

Affected products

The-40-Thieves obsidian-tc before 1.3.1

Identifiers

CVE-2026-77361
GHSA-c5xx-h28h-f682

Timeline

2026-10-13: disclosed
2026-07-01: patched

References

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