CVE-2026-94046

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-09-20. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 4.3Exploit: Elevated riskExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

A weakness has been identified in 0215AndrewFeng ACE-MCP up to 4.10.8. The affected element is the function get_file_snippet of the file getFileSnippet.ts of the component MCP Tool. Executing a manipulation of the argument projectRootPath/filePath can lead to path traversal. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. isPathInsideProjectRoot only blocks filePath escaping the attacker-chosen projectRootPath; the root itself is untrusted client input - set projectRootPath=/etc, filePath=hosts and the guard passes. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
4.3
EG Score
4.3MEDIUMhigh confidence
EG Risk
35
EG Risk 35/100CISA SSVC

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 computed
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 20, 2026

Last Modified

September 21, 2026

Advisory Details (3)

Auto-updated Sep 20, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

GitHub - 0215AndrewFeng/ACE-MCP: 本地代码搜索 `MCP Server`，面向 `Java`、`JavaScript/TypeScript`、`.NET/C#`、`Python` 项目，支持本地扫描、增量索引、全文/符号/路径搜索，并通过标准 `MCP` 协议把结果提供给 AI 客户端。 · GitHub

https://github.com/0215AndrewFeng/ACE-MCP/
generic🟡 PoC Available

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in ACE-MCP · Issue #3 · Xh1Xxhg/public_exp · GitHub

https://github.com/Xh1Xxhg/public_exp/issues/3
generic🟡 PoC Available

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in ACE-MCP · Issue #1 · 0215AndrewFeng/ACE-MCP · GitHub

https://github.com/0215AndrewFeng/ACE-MCP/issues/1

Vendor Advisories for CVE-2026-94046(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 50× 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.

  1. 2026-10-05 07:05 UTCEG score recompute
  2. 2026-10-05 07:05 UTCGHSA enrichment
  3. 2026-10-04 23:23 UTCEPSS rescore
  4. 2026-10-04 06:03 UTCEG score recompute
  5. 2026-10-04 06:03 UTCGHSA enrichment
  6. 2026-10-03 14:26 UTCEPSS rescore
  7. 2026-10-03 05:01 UTCEG score recompute
  8. 2026-10-03 05:01 UTCGHSA enrichment
  9. 2026-10-02 17:57 UTCEPSS rescore
  10. 2026-10-02 03:59 UTCEG score recompute
  11. 2026-10-02 03:58 UTCGHSA enrichment
  12. 2026-10-01 19:51 UTCEPSS rescore
  13. 2026-10-01 02:52 UTCEG score recompute
  14. 2026-10-01 02:52 UTCGHSA enrichment
  15. 2026-09-30 15:04 UTCEPSS rescore
  16. 2026-09-30 01:50 UTCEG score recompute
  17. 2026-09-30 01:50 UTCGHSA enrichment
  18. 2026-09-29 00:49 UTCEG score recompute
  19. 2026-09-29 00:49 UTCGHSA enrichment
  20. 2026-09-28 13:52 UTCEPSS rescore
  21. 2026-09-28 13:52 UTCEPSS rescore
  22. 2026-09-27 23:44 UTCEG score recompute
  23. 2026-09-27 23:44 UTCGHSA enrichment
  24. 2026-09-27 13:49 UTCEPSS rescore
  25. 2026-09-26 22:42 UTCEG score recompute
Show 25 more
  1. 2026-09-26 22:42 UTCGHSA enrichment
  2. 2026-09-26 15:59 UTCEPSS rescore
  3. 2026-09-25 21:40 UTCGHSA enrichment
  4. 2026-09-24 20:32 UTCEG score recompute
  5. 2026-09-24 20:32 UTCGHSA enrichment
  6. 2026-09-24 14:04 UTCEPSS rescore
  7. 2026-09-23 19:30 UTCEG score recompute
  8. 2026-09-23 19:30 UTCGHSA enrichment
  9. 2026-09-23 17:54 UTCEPSS rescore
  10. 2026-09-22 18:27 UTCEG score recompute
  11. 2026-09-22 18:27 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-21 21:09 UTCEPSS rescore
  14. 2026-09-21 17:26 UTCEG score recompute
  15. 2026-09-21 17:26 UTCGHSA enrichment
  16. 2026-09-21 17:25 UTCNVD updateCVSS v4 → 2.1
  17. 2026-09-21 16:35 UTCEG score recompute
  18. 2026-09-21 16:35 UTCGHSA enrichment
  19. 2026-09-21 16:35 UTCMITRE cvelistV5CVSS v4 → 5.3
  20. 2026-09-21 13:40 UTCEG score recompute
  21. 2026-09-21 13:40 UTCGHSA enrichment
  22. 2026-09-20 19:20 UTCEG score recompute
  23. 2026-09-20 19:19 UTCNVD updateCVSS v4 → 2.1
  24. 2026-09-20 18:51 UTCEG score recompute
  25. 2026-09-20 18:51 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-94046?
CVE-2026-94046 is a medium vulnerability published on September 20, 2026. A weakness has been identified in 0215AndrewFeng ACE-MCP up to 4.10.8. The affected element is the function getfilesnippet of the file getFileSnippet.ts of the component MCP Tool. Executing a manipulation of the argument projectRootPath/filePath can lead to path traversal. The attack may be…
When was CVE-2026-94046 disclosed?
CVE-2026-94046 was first published on September 20, 2026, with the most recent update on September 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-94046 actively exploited?
CVE-2026-94046 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-94046?
CVE-2026-94046 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-94046?
No fix for CVE-2026-94046 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-94046 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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