CVE-2026-57442

MEDIUMPre-NVD 6.96.9
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (8th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated

Also known asEUVD-2026-79126 (ENISA EUVD) · GHSA-9c83-rr99-vfwj (GitHub Security Advisories)Source: ENISA EUVD

6.9EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.9Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
6.9
EG Score
6.9MEDIUMmedium confidence
EG Risk
47
EG Risk 47/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity69% × 45%
Impact severity (EG Severity): CVSS 6.9 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.9): severity, escalated by confirmed exploitation. This CVE's 6.9 is its impact severity (EG Severity), not escalated.

EG Severity
6.9 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 19, 2026

Last Modified

September 30, 2026

Advisory Details (4)

Auto-updated Sep 15, 2026
Patch 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/8795716b90d1c4090a82a58647e030763513f17e
GitHub commit

commit 0adb43901e1a (bitbonsai/mcpvault)

Fix landed in bitbonsai/mcpvault commit 0adb43901e1a — awaiting tagged release

https://github.com/bitbonsai/mcpvault/commit/0adb43901e1a08e85e14b42a8df2442fabc0b64a
Web page

PathFilter ignoredPatterns 'node_modules/**' only matches root-level — nested node_modules pollute listAllTags · Issue #128 · bitbonsai/mcpvault · GitHub

https://github.com/bitbonsai/mcpvault/issues/128
GitHub advisoryMentions a patch (unverified)

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-vfwj

Vendor 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)
PackageVulnerable rangeFix by version rangeDependents
@bitbonsai/mcpvault—
  • every version up to 0.11.5: fixed in 0.11.5
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 37× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-25 14:17 UTCEG score recompute
  5. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-22 21:06 UTCEG score recompute
  8. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-18 03:28 UTCEG score recompute
  14. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-10-12 15:54 UTCEG score recompute
  21. 2026-10-11 19:37 UTCEG score recompute
  22. 2026-10-11 16:52 UTCEG score recompute
  23. 2026-10-11 14:15 UTCEG score recompute
  24. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
Show 29 more
  1. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  6. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  8. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-09-30 18:11 UTCEG score recompute
  10. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  12. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  13. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  16. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-09-16 15:33 UTCEG score recompute
  21. 2026-09-16 14:27 UTCEG score recompute
  22. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-09-15 18:37 UTCEG score recompute
  24. 2026-09-15 17:58 UTCEG score recomputeFirst assessed: 6.9 MEDIUM
  25. 2026-09-15 17:57 UTCMITRE cvelistV5CVSS v3 → 6.9 · CVSS v4 → 6.9
  26. 2026-08-02 08:33 UTCEG score recompute
  27. 2026-07-26 16:46 UTCEG score recompute
  28. 2026-07-23 03:20 UTCEG score recompute
  29. 2026-07-20 21:35 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-57442?
CVE-2026-57442 is a medium-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-57442 published?
The CVE record for CVE-2026-57442 was published on June 19, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 30, 2026; the record at its source may have been updated since.
Is CVE-2026-57442 actively exploited?
CVE-2026-57442 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57442?
CVE-2026-57442 has a CVSS base score of 6.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-57442?
A fix for CVE-2026-57442 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-57442 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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