CVE-2026-48791 Sigstore Java has a vulnerability with bundle verification of integratedTime

sigstore-java is a sigstore java client for interacting with sigstore infrastructure. Version 2.0.0 erroneously removed verification of the integrated Rekor entry time against the Fulcio certificate. Version 2.1.0 re-added this verification with enhancements that adhere to the Sigstore verificati...

Insufficient Verification of Data Authenticity

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 set...

PT-2026-55205

Name of the Vulnerable Software and Affected Versions sigstore-js versions prior to 3.1.1 Description The @sigstore/verify library incorrectly derives a transparency-log timestamp from the tlogEntries.integratedTime variable for bundle v0.2 inclusionProof-only entries. Because the inclusion proof...