CVE-2026-49988
Repomix: attach_packed_output can bypass file-read secret scanning for supported local files
MEDIUM 6.8EPSS 0.2%
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
- yamadashy · repomix
- CVSS v4.0 GITHUB
- 6.8 MEDIUM
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 - CVSS v4.0 GitHub
- 6.9 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS v3.1 NVD
- 5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS
- 0.18% chance of exploitation in the next 30 days, 7th percentile
- Published
- 2026-07-15
- Updated
- 2026-07-18
Proof-of-concept exploits (1)
Security advisories
- yamadashy/repomix/security/advisories/GHSA-hwpp-h97w-2h3j
- yamadashy/repomix/commit/e447f7dba6f51fdb26bcad0c280542fca291960e