CVE-2026-77361
Mở trang đầy đủCVSS 4.7 MEDIUM Truy cập trái phép
obsidian-tc : Symlink read-ACL scope bypass via lexical path checks
Mô tả
Impact
ACL checks ran on the lexical vault-relative path while containment used the realpath. An in-vault symlink placed under an allowed glob, whose realpath resolved into a denied folder, passed the read ACL — an intra-vault read-ACL-scope bypass. It requires an out-of-band-planted symlink (no MCP tool creates one) and is not a vault-root escape.
Patches
Fixed in 1.3.1. Upgrade to >= 1.3.1. ACL enforcement now derives the realpath vault-relative path and feeds a single unified predicate at every site.
Workarounds
Do not permit untrusted symlinks inside the vault.
Điểm và phân loại
- CVSS
- 4.7 MEDIUM v3.1
- Nguồn điểm
- GitHub Advisory
- Mức độ (theo nguồn)
- MEDIUM
- EPSS
- 0.11%
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Ảnh hưởng
| Package | Bản bị ảnh hưởng | Bản đã sửa |
|---|---|---|
npm obsidian-tc |
< 1.3.1 |
1.3.1
|
Vì sao bị lọc
- CVSS 4.7 < 8.0 và không thuộc CISA KEV
Loại tác động
- Truy cập trái phép
- CWE-863
Tham khảo
- https://github.com/advisories/GHSA-c5xx-h28h-f682
- https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-c5xx-h28h-f682
- https://github.com/The-40-Thieves/obsidian-tc/pull/76
- https://github.com/The-40-Thieves/obsidian-tc/commit/c81d1687e2cfec98a0d8bc5038c029f41ea9c920
- https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1
- https://nvd.nist.gov/vuln/detail/cve-2026-77361