PYSEC-2026-1923 sigstore has insufficient validation of integration timestamp during verification

Summary Versions of sigstore-python newer than 2.0.0 but prior to 3.6.0 perform insufficient validation of the "integration time" present in "v2" and "v3" bundles during the verification flow: the "integration time" is verified if a source of signed time such as an inclusion promise is present, b...

CVE-2024-55655

sigstore-python is a Python tool for generating and verifying Sigstore signatures. Versions of sigstore-python newer than 2.0.0 but prior to 3.6.0 perform insufficient validation of the "integration time" present in "v2" and "v3" bundles during the verification flow: the "integration time" is...

CVE-2024-55655 sigstore-python has insufficient validation of integration timestamp during verification

sigstore-python is a Python tool for generating and verifying Sigstore signatures. Versions of sigstore-python newer than 2.0.0 but prior to 3.6.0 perform insufficient validation of the "integration time" present in "v2" and "v3" bundles during the verification flow: the "integration time" is...

sigstore-python security vulnerability

sigstore-python is a Python tool for generating and verifying Sigstore signatures from the sigstore open source. A security vulnerability exists in sigstore-python versions prior to 2.0.0 through 3.6.0, which stems from insufficient validation of integration time in v2 and v3 bundles, and can cau...