CVE-2026-59891 — Credential confusion in @sigstore/oci can leak registry credentials to an attacker-controlled registry
sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 0.7.1, getRegistryCredentials() reads credentials from the Docker config file and sele…
Published: 2026-07-14 · CVSS: 9.6 · CVSS 3.1
sigstore-js provides JavaScript libraries for interacting with Sigstore services. Prior to 0.7.1, getRegistryCredentials() reads credentials from the Docker config file and selects an entry by checking whether any configured auth key contains the target registry string. Because this is a substring match rather than an exact host match, credentials configured for one registry can be selected for and transmitted to a different registry whose hostname has a substring relationship with a configured auth key. This issue is fixed in version 0.7.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7