CVE-2026-49349 regclient may leak authentication credentials to external blob stores

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 f...

CVE-2026-49349

CVE-2026-49349 affects the Go-based regclient library. Before version 0.11.5, credentials for a registry could be leaked to external servers when interacting with a malicious registry, blob store, or a registry that doesn’t restrict external URLs for foreign blobs. The root cause is an insecure c...