CVE-2026-49988 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-49988MEDIUM

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

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   L   N   L   N   H   N   N    6.8   .0020   10.2     —

AFFECTED
  Product  Versions    Fixed
  repomix  < 1.14.1 –  —

TIMELINE
  Jun 2   Reserved by GitHub_M
  Jul 15  EXPLOIT PUBLISHED — CVE-2026-49988 (yamadashy repomix). Public exploit reference added.
  Jul 15  Published (CNA: GitHub_M)

CWE-200 · CNA: GitHub_M · CVSS v4.0 · 3 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 2, 2026	Reserved	Reserved by GitHub_M
July 15, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-49988 (yamadashy repomix). Public exploit reference added.
July 15, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
yamadashy	repomix	—	< 1.14.1	—

Weaknesses

CWE-200

References (3)

https://github.com/yamadashy/repomix/commit/e447f7dba6f51fdb26bcad0c280542fca291960e [Patch]
https://github.com/yamadashy/repomix/releases/tag/v1.14.1 [Release Notes]
https://github.com/yamadashy/repomix/security/advisories/GHSA-hwpp-h97w-2h3j [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-49988 at cve.org

Vendors: yamadashy

Weaknesses: CWE-200

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-49988 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.