MCPVault is a lightweight Model Context Protocol server for safe access to files in an Obsidian vault. Prior to 0.11.5, PathFilter in src/pathfilter.ts uses root-anchored deny-list patterns, so nested .git, .obsidian, and node_modules path segments do not match the restriction and pass both isAllowed() and isAllowedForListing(). An attacker who influences a path selected by an AI agent can traverse nested repository or Obsidian metadata, read remote URLs or embedded tokens, or cause nested node_modules content to pollute the listAllTags index. This issue is fixed in version 0.11.5.
CVE-2026-57442
MEDIUMPre-NVD 6.96.9—Trending — 3 sources updated this weekElevated
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 94% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
6.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.9Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.9
- EG Score
- 6.9(medium)
- EG Risk
- 47(Track)EG Risk 47/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity69% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 6%
- KEV
- Not listed
Published
June 19, 2026
Last Modified
September 16, 2026
Advisory Details (4)
Auto-updated Sep 15, 2026Patch available. Sources: github_commit, github.
github_commit
commit 8795716b90d1 (bitbonsai/mcpvault)
Fix landed in bitbonsai/mcpvault commit 8795716b90d1 — awaiting tagged release
https://github.com/bitbonsai/mcpvault/commit/8795716b90d1c4090a82a58647e030763513f17egithub_commit
commit 0adb43901e1a (bitbonsai/mcpvault)
Fix landed in bitbonsai/mcpvault commit 0adb43901e1a — awaiting tagged release
https://github.com/bitbonsai/mcpvault/commit/0adb43901e1a08e85e14b42a8df2442fabc0b64ageneric
PathFilter ignoredPatterns 'node_modules/**' only matches root-level — nested node_modules pollute listAllTags · Issue #128 · bitbonsai/mcpvault · GitHub
https://github.com/bitbonsai/mcpvault/issues/128github Patch Available
PathFilter restricted directories (.git/.obsidian/node_modules) only denied at vault root, not nested · Advisory · bitbonsai/mcpvault · GitHub
Affected: 0.11.5 by denying these restricted names at any path depth (matched case-insensit
https://github.com/bitbonsai/mcpvault/security/advisories/GHSA-9c83-rr99-vfwjVendor Advisories for CVE-2026-57442(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| @bitbonsai/mcpvault | — | 0.11.5 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-17 19:31 UTCEPSS rescore
- 2026-09-16 15:33 UTCEG score recompute
- 2026-09-16 14:27 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescore
- 2026-09-15 18:37 UTCEG score recompute
- 2026-09-15 17:58 UTCEG score recompute▲ 6.90
- 2026-09-15 17:57 UTCMITRE cvelistV5CVSS v3 → 6.9 · CVSS v4 → 6.9
- 2026-08-02 08:33 UTCEG score recompute
- 2026-07-26 16:46 UTCEG score recompute
- 2026-07-23 03:20 UTCEG score recompute
- 2026-07-20 21:35 UTCEG score recompute
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-57442?
CVE-2026-57442 is a medium vulnerability published on June 19, 2026. MCPVault is a lightweight Model Context Protocol server for safe access to files in an Obsidian vault. Prior to 0.11.5, PathFilter in src/pathfilter.ts uses root-anchored deny-list patterns, so nested .git, .obsidian, and nodemodules path segments do not match the restriction and pass both…
When was CVE-2026-57442 disclosed?
CVE-2026-57442 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57442 actively exploited?
CVE-2026-57442 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.8% of all scored CVEs.
What is the CVSS score of CVE-2026-57442?
CVE-2026-57442 has a CVSS v3 base score of 6.9 (NVD).
How do I remediate CVE-2026-57442?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57442, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-57442
Is Your Infrastructure Affected by CVE-2026-57442?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.