Description
Repomix is a tool that packs repositories into AI-friendly files. Prior to 1.14.1, the Repomix MCP server attach_packed_output and read_repomix_output flow can register and read arbitrary local .json, .txt, .md, or .xml files without the file_system_read_file runSecretLint() safety check or Repomix packed-output validation, allowing MCP callers to bypass the local file-read secret-scanning boundary. This issue is fixed in version 1.14.1.
Affected products
yamadashy: repomix
References4
- github.com/yamadashy/repomix/security/advisories/GHSA-hwpp-h97w… ExploitVendor Advisory
- github.com/yamadashy/repomix/security/advisories/GHSA-hwpp-h97w… ExploitVendor Advisory
- github.com/yamadashy/repomix/commit/e447f7dba6f51fdb26bcad0c280… Patch
- github.com/yamadashy/repomix/releases/tag/v1.14.1 Release Notes
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 4.0
-
6.8
MEDIUM
Score source: CNA
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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 - EPSS — exploit probability
- 0% percentile: 8 · as of 15 November 2026
- CWE
- CWE-200
Could this be exploited in your environment?
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