Insufficient Verification of Data Authenticity Affecting @sigstore/verify package, versions >=3.1.0 <3.1.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-SIGSTOREVERIFY-17817056
- published4 Jul 2026
- disclosed1 Jul 2026
- creditUnknown
Introduced: 1 Jul 2026
NewCVE-2026-48816 (opens in a new tab)How to fix?
Upgrade @sigstore/verify to version 3.1.1 or higher.
Overview
@sigstore/verify is a Verification of Sigstore signatures
Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity via the integratedTime process. An attacker can manipulate time-based verification decisions by supplying a crafted bundle that sets an unauthenticated value for integratedTime, thereby influencing certificate validity checks and bypassing intended trust boundaries.