CVE-2026-54787

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.1, sigstore-go does not check a bundle signing timestamp against the validity window of an ExpiringKey wrapping a self-managed long-lived signing key without a certificate, which can allow an attacker holding expired...

EUVD-2026-51665

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.1, sigstore-go does not check a bundle signing timestamp against the validity window of an ExpiringKey wrapping a self-managed long-lived signing key without a certificate, which can allow an attacker holding expired...

CVE-2026-54787

CVE-2026-54787 affects the Go library sigstore-go. Before 1.2.1, it does not check a bundle signing timestamp against the validity window of an ExpiringKey wrapping a long‑lived signing key without a certificate, enabling an attacker with expired key material to sign accepted bundles. The issue i...

PT-2026-66873

Name of the Vulnerable Software and Affected Versions sigstore-go versions prior to 1.2.1 Description The library fails to verify the bundle signing timestamp against the validity window of an ExpiringKey when using a self-managed long-lived signing key without a certificate. This allows an...

CLEANSTART-2026-CM12732 Security fixes in sigstore-scaffolding 0.7.31-r1

Package sigstore-scaffolding version 0.7.31-r1 fixes 2 vulnerabilities: ghsa-fcv2-xgw5-pqxf, ghsa-jqc5-w2xx-5vq4...

CLEANSTART-2026-QE68045 Security fixes in sigstore-scaffolding 0.7.31-r0

Package sigstore-scaffolding version 0.7.31-r0 fixes 4 vulnerabilities: ghsa-59jp-pj84-45mr, ghsa-846p-jg2w-w324, ghsa-fphv-w9fq-2525, ghsa-4qg8-fj49-pxjh...

github.com/sigstore/sigstore-go: sigstore-go: Signature bypass allows acceptance of bundles signed with expired keys

A flaw was found in sigstore-go, a software library used for verifying digital signatures. This vulnerability specifically affects the workflow for self-managed long-lived signing keys that do not use certificates. An attacker who possesses an expired signing key can exploit this by creating and...

github.com/sigstore/sigstore-go: sigstore-go: Security Policy Bypass via Compromised Log

A flaw was found in sigstore-go, a Go library for Sigstore signing and verification. This vulnerability allows a single compromised transparency log or Certificate Transparency CT log to bypass the multi-log threshold requirements. An attacker could exploit this by compromising a single log,...

github.com/sigstore/sigstore-go: sigstore-go: Security Policy Bypass via Compromised Log

A flaw was found in sigstore-go, a Go library for Sigstore signing and verification. This vulnerability allows a single compromised transparency log or Certificate Transparency CT log to bypass the multi-log threshold requirements. An attacker could exploit this by compromising a single log,...

Exploit for CVE-2026-59891

CVE-2026-59891 Regression & Control Lab @sigstore/oci의 실제 취...

github.com/sigstore/sigstore-go: sigstore-go: Signature bypass allows acceptance of bundles signed with expired keys

A flaw was found in sigstore-go, a software library used for verifying digital signatures. This vulnerability specifically affects the workflow for self-managed long-lived signing keys that do not use certificates. An attacker who possesses an expired signing key can exploit this by creating and...

github.com/sigstore/sigstore-go: sigstore-go: Signature bypass allows acceptance of bundles signed with expired keys

A flaw was found in sigstore-go, a software library used for verifying digital signatures. This vulnerability specifically affects the workflow for self-managed long-lived signing keys that do not use certificates. An attacker who possesses an expired signing key can exploit this by creating and...

github.com/sigstore/sigstore-go: sigstore-go: Security Policy Bypass via Compromised Log

A flaw was found in sigstore-go, a Go library for Sigstore signing and verification. This vulnerability allows a single compromised transparency log or Certificate Transparency CT log to bypass the multi-log threshold requirements. An attacker could exploit this by compromising a single log,...

@sigstore/cli (>=0.7.0, <=0.9.1) potentially affected by CVE-2026-59891 via @sigstore/oci (>=0.2.0, <=0.6.1)

@sigstore/oci NPM version =0.2.0, =0.7.0, =0.9.1 Source cves: CVE-2026-59891 Source advisory: OSV:GHSA-PF56-329R-95RW...

Credential confusion in @sigstore/oci can leak registry credentials to an attacker-controlled registry

Impact This is a credential-exposure / credential-confusion issue. getRegistryCredentials reads credentials from the Docker config file /.docker/config.json and selects an entry by checking whether any configured auth key contains the target registry string: js Object.keysdockerConfig.auths ||...

Linux Distros Unpatched Vulnerability : CVE-2026-49834

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLogN1 or...

Linux Distros Unpatched Vulnerability : CVE-2026-49835

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.1.0, the global wrapMetrics middleware records raw HTTP request path...

CVE-2026-49834

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLogN1 or WithSignedCertificateTimestampsN1 counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised...

DEBIAN-CVE-2026-49834

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLogN1 or WithSignedCertificateTimestampsN1 counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised...

UBUNTU-CVE-2026-49834

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLogN1 or WithSignedCertificateTimestampsN1 counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised...