regclient may leak authentication credentials to external blob stores (CVE-2026-49349) | HOL Guard CVE

Medium · CVSS 6.8CVE-2026-49349GHSA-QVQC-4C52-X6QP

regclient may leak authentication credentials to external blob stores

Answer in brief

CVE-2026-49349 records a Medium severity (CVSS 6.8) vulnerability in regclient may leak authentication credentials to external blob stores. The current sources do not mark it as known exploited. The current feed maps regclient/regclient (generic), github.com/regclient/regclient (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 12, 2026Updated Sep 9, 2026Source checked Sep 17, 2026First seen by HOL Jun 26, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps regclient/regclient (generic), github.com/regclient/regclient (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
regclient/regclientgeneric	< 0.11.5	Not reported
github.com/regclient/regclientgo	<=0.11.4	0.11.5

Recommended response

Check inventory. Check lockfiles and deployed manifests for regclient/regclient, github.com/regclient/regclient.
Review the reported fix. Update github.com/regclient/regclient to 0.11.5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 26, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.