CVE-2026-49349

regclient may leak authentication credentials to external blob stores

Published Aug 12, 2026 CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Description
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-qvqc-4c52-x6qp regclient may leak authentication credentials to external blob stores
History
Type Values Removed Values Added
First Time appeared Regclient
Regclient regclient
Vendors & Products Regclient
Regclient regclient
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title regclient may leak authentication credentials to external blob stores
Weaknesses CWE-522
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 12, 2026, 2:35 PM
Reserved
May 29, 2026, 2:35 PM
Status
Deferred
Published
Aug 12, 2026, 3:17 PM
Modified
Sep 9, 2026, 8:55 PM