alioshr memory-bank-mcp list-project-files-validation-factory.ts path traversal

published 2026-07-13 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-43266

cvss: 3.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits: 0; none known

A security vulnerability has been detected in alioshr memory-bank-mcp up to 0.2.1/3.1. This affects an unknown part of the file list-project-files-validation-factory.ts. Such manipulation of the argument projectName leads to path traversal. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-13)

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/alioshr/memory-bank-mcp/issues/36 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	4.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
CNA	3.1	3.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CNA	3.0	3.3	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CNA	2.0	1.7	AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR
CNA	4.0	1.9	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	3.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA	2.0	1.7	AV:L/AC:L/Au:S/C:P/I:N/A:N

Affected products

alioshr memory-bank-mcp

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

github.com /alioshr/memory-bank-mcp/issues/36
exploit, issue-tracking
vuldb.com /vuln/377853
vdb-entry, technical-description
vuldb.com /vuln/377853/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-15524
third-party-advisory
vuldb.com /submit/854526
third-party-advisory
github.com /alioshr/memory-bank-mcp/
product

Sources

CVE List CVE-2026-15524
NVD CVE-2026-15524

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary