Improper Verification of Cryptographic Signature Affecting dev.sigstore:sigstore-java package, versions [,2.1.0)
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-JAVA-DEVSIGSTORE-17753965
- published1 Jul 2026
- disclosed30 Jun 2026
- creditUnknown
Introduced: 30 Jun 2026
CVE-2026-48791 (opens in a new tab)How to fix?
Upgrade dev.sigstore:sigstore-java to version 2.1.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the integratedTime verification process. An attacker can bypass certificate validity checks by providing a bundle with a manipulated integrated time, potentially allowing the reuse of an old certificate for artifact verification.