CVE-2026-49988: Repomix is a tool that packs repositories into AI-friendly files

Q: How do I fix CVE-2026-49988?

repomix: upgrade to 1.14.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-49988 being exploited?

CVE-2026-49988 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-49988 affect?

CVE-2026-49988 affects repomix. Severity is medium (CVSS 5.5). 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 fi

Q: How urgent is CVE-2026-49988?

Priority 26/100. Public exploit reference

Routine

MEDIUM 5.5UPGRADE

CVE-2026-49988 is a medium-severity flaw (CVSS 5.5) affecting repomix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-200
Published	2026-07-15
Last modified	2026-10-24

Publisher (CNA): GitHub, Inc. · Vendor: yamadashy

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-15 19:17 UTCPublished CVE record published
2026-10-24 21:10 UTCUpdated Record last modified

yamadashy repomix UPGRADE

Affected: < 1.14.1

Fixed in: 1.14.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy repomix || rpm -q repomix || repomix --version

2. UPGRADE to 1.14.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade repomix

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade repomix

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-49988?

repomix: upgrade to 1.14.1. Exact commands for each OS are on this page.

Is CVE-2026-49988 being exploited?

CVE-2026-49988 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-49988 affect?

CVE-2026-49988 affects repomix. Severity is medium (CVSS 5.5). 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 fi

How urgent is CVE-2026-49988?

Priority 26/100. Public exploit reference

Related CVEs

CVE-2026-49987 HIGH 8.8 UPGRADE Repomix is a tool that packs repositories into AI-friendly files

References

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