---
id: CVE-2026-49349
title: regclient is a Docker and OCI Registry Client in Go
summary: >-
  regclient is a Docker and OCI Registry Client in Go. Prior to version 0.11.5,
  credentials for a registry may be inadvertently leaked to external servers. A
  prerequisite for this attack is a malicious registry server, a malicious blob
  sto…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N'
cwe:
  - CWE-522
vendor: regclient
product: github.com/regclient/regclient
affected:
  - github.com/regclient/regclient <= 0.11.4
patched:
  - github.com/regclient/regclient 0.11.5
published: '2026-08-12'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:55:04.493'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-49349'
references:
  - url: >-
      https://github.com/regclient/regclient/security/advisories/GHSA-qvqc-4c52-x6qp
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-qvqc-4c52-x6qp'
tags:
  - nvd
  - ghsa
  - go
epss: 0.00306
epssPercentile: 0.20806
ecosystem: go
ingestedAt: '2026-06-29T13:24:35.092Z'
---

## Overview

regclient is a Docker and OCI Registry Client in Go. Prior to version 0.11.5, credentials for a registry may be inadvertently leaked to external servers. A prerequisite for this attack is a malicious registry server, a malicious blob store, or a registry that does not restrict the external URLs for foreign blobs. Version 0.11.5 fixes the issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-49349)

Affected packages:

- `github.com/regclient/regclient <= 0.11.4`

Patched in:

- `github.com/regclient/regclient 0.11.5`

Source: https://github.com/advisories/GHSA-qvqc-4c52-x6qp