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SCA: security update for obsidian-tc (GHSA-r3g7-r4hr-m258)

high Tenable Cloud Security Plugin ID 477163

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. From 1.0.1 until
 1.31.4, `create_entity`, `link_entities`, `rename_entity`, `unlink_entities` and `delete_entity`
 regenerate memory notes from SQLite at the computed `memory/<type>/<name>.md` path without reliably
 preserving note ownership or the consistency of a failed lifecycle operation. During shared
 materialization, a hand-authored note or an orphan left by a different entity whose name sanitized to the
 same path could have its entire body overwritten on the next write naming that type and name, with non-
 owned frontmatter preserved. `rename_entity` also seeded the destination path with a direct atomic write
 without validating ownership and could overwrite a foreign note there. Separately, several tools mutated
 SQLite before fallible filesystem work: `create_entity` and `link_entities` inserted the row or relation
 before materialization; `rename_entity` updated the entity, including a retired status, before updating
 its note; `unlink_entities` removed a relation before rematerializing the source note; and
 `delete_entity`'s cascade removed the target and its relations before rematerializing neighbouring notes.
 A later filesystem failure could therefore leave a row or relation changed and the memory graph
 inconsistent with the notes on disk even when the operation failed. An authorized caller with the required
 memory-tool permissions could, without intending to, destroy the body of a vault note outside the entity
 being written; `delete_entity` additionally requires its deletion permission and destructive confirmation,
 which this memory flaw does not bypass. Snapshots-before-write through `restore_note` mitigate the
 overwrite only where snapshots are enabled and the note had previously been written through obsidian-tc.
 This issue is fixed in version 1.31.4. (CVE-2026-115478)

Solution

Update the obsidian-tc library and its related packages to version 1.31.4 or later.

See Also

https://github.com/advisories/GHSA-r3g7-r4hr-m258

Plugin Details

Severity: High

ID: 477163

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/23/2026

Updated: 10/23/2026

Risk Information

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P

CVSS Score Source: CVE-2026-115478

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 5

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/23/2026

Vulnerability Publication Date: 10/23/2026

Reference Information

CVE: CVE-2026-115478