regclient may leak authentication credentials to external blob stores
Priority LOW 30CWE-522Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-522.
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 store, or a registry that does not restrict the external URLs for foreign blobs. Version 0.11.5 fixes the issue.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00306 23rd percentileScored 2026-11-07
Fix Fixed regclient (regclient): 0.11.5github.com/regclient/regclient (Go): 0.11.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| regclient | regclient | before 0.11.5 | 0.11.5 | Patch available | CNA |
| — | github.com/regclient/regclient (Go) | before 0.11.5 | 0.11.5 | Patch available | GHSA-qvqc-4c52-x6qp |
- regclient Vendorregclient Affected before 0.11.5 Fixed in 0.11.5 Patch available CNA
- github.com/regclient/regclient (Go) Vendor— Affected before 0.11.5 Fixed in 0.11.5 Patch available GHSA-qvqc-4c52-x6qp
Remediation
- Fix · CNA regclient (regclient) Fixed in 0.11.5
- Fix · GHSA-qvqc-4c52-x6qp github.com/regclient/regclient (Go) Fixed in 0.11.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-49349
- 2026-10-03 Alias added: GHSA-qvqc-4c52-x6qp
References
More regclient vulnerabilities
- TI-2025-18584 regclient may ignore pinned manifest digests CVSS 3.1MEDIUM 5.2
Sources
- CVE-2026-49349 · CVE Program
- CVE-2026-49349 · NVD
- FIRST EPSS
- GHSA-qvqc-4c52-x6qp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences