npm package report

Is @sigstore/core safe?

1 known vulnerability, worst severity MODERATE.

cvss

5.4

how bad it is if exploited, out of 10

epss

0.30%

chance of exploitation in the next 30 days

xyz score

not scored

CyberXYZ composite, out of 10

fig. 01 — GHSA-jfc7-64v2-mr8c, the advisory selected below

// advisories

GHSA-jfc7-64v2-mr8c

MODERATECVE-2026-48758

The preAuthEncoding function in @sigstore/core uses Node.js 'ascii' encoding when converting the PAE (Pre-Authentication Encoding) string to bytes. This allows payloadType to be mutated after signing without invalidating the signature, breaking the type-binding guarantee that DSSE is designed to provide.

Affected: >=0, <3.2.1, <= 3.2.0
Fixed in: 3.2.1
Weakness: CWE-347
Published: 2026-06-26
Source: osv

NVD MITRE OSV

// dependencies

0 direct

// ai model usage

Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.

Checked 2026-09-22 at 02:52 UTC. The most recent advisory here was published 2026-06-26. Updated continuously from NVD, GHSA, OSV and CNA feeds.

Is @sigstore/core safe? npm package security report | CyberXYZ