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CVE-2026-598919.6CriticalCWE-522

CVE-2026-59891: Credential confusion in @sigstore/oci can leak registry credentials to an attacker-controlled registry

sigstore · sigstore-js

Affected: sigstore-js · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.5%probability of exploitation in the next 30 days
41st percentile
050100

Higher than 41% of scored CVEs

9.6CriticalCVSS 3.1
LowCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • sigstore · sigstore-js< 0.7.1

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
sigstore
Published
July 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-59891 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References