CVE-2026-59891
Credential confusion in @sigstore/oci can leak registry credentials to an attacker-controlled registry
CVSS Score
9.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-522 |
| Vendor | sigstore |
| Product | sigstore-js |
| Published | Jul 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
sigstore / sigstore-js
< 0.7.1