CVE-2026-49988

MEDIUM

Repomix: attach_packed_output can bypass file-read secret scanning for supported local files

Title source: cna
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v4 6.8
EPSS 0.0014
EPSS Percentile 3.7%
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

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (1)
yamadashy/repomix < 1.14.1
Published Jul 15, 2026
Tracked Since Jul 16, 2026