CVE-2026-39984

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Versions 2.0.5 and below contain an authorization bypass vulnerability in the VerifyTimestampResponse function. VerifyTimestampResponse correctly verifies the certificate chain signature, but the TSA-specific constraint...

Sigstore Timestamp Authority 安全漏洞

Sigstore Timestamp Authority is an open-source RFC3161 timestamp authorization software developed by sigstore. Versions of Sigstore Timestamp Authority 2.0.5 and earlier contained security vulnerabilities. These vulnerabilities stemmed from issues with the VerifyTimestampResponse function, which...

CVE-2026-39984

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Versions 2.0.5 and below contain an authorization bypass vulnerability in the VerifyTimestampResponse function. VerifyTimestampResponse correctly verifies the certificate chain signature, but the TSA-specific constraint...

CVE-2026-39984 Sigstore Timestamp Authority has Improper Certificate Validation in verifier

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Versions 2.0.5 and below contain an authorization bypass vulnerability in the VerifyTimestampResponse function. VerifyTimestampResponse correctly verifies the certificate chain signature, but the TSA-specific constraint...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation in the VerifyTimestampResponse function when a forged certificate is prepended to the certificate bag. An attacker can bypass authorization checks by supplying a payload where the signature is validated...

CVE-2026-39984 Sigstore Timestamp Authority has Improper Certificate Validation in verifier

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Versions 2.0.5 and below contain an authorization bypass vulnerability in the VerifyTimestampResponse function. VerifyTimestampResponse correctly verifies the certificate chain signature, but the TSA-specific constraint...

CVE-2026-39984

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Versions 2.0.5 and below contain an authorization bypass vulnerability in the VerifyTimestampResponse function. VerifyTimestampResponse correctly verifies the certificate chain signature, but the TSA-specific constraint...

CVE-2026-39984

CVE-2026-39984 – Sigstore Timestamp Authority (tsa/timestamp-authority/v2/pkg/verification) : Versions 2.0.5 and earlier contain an authorization bypass in VerifyTimestampResponse. The code validates the certificate chain correctly but applies TSA-specific constraints using the first non-CA certi...

CVE-2026-39984 Sigstore Timestamp Authority has Improper Certificate Validation in verifier

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Versions 2.0.5 and below contain an authorization bypass vulnerability in the VerifyTimestampResponse function. VerifyTimestampResponse correctly verifies the certificate chain signature, but the TSA-specific constraint...

Sigstore Timestamp Authority has Improper Certificate Validation in verifier

Authorization bypass via certificate bag manipulation in sigstore/timestamp-authority verifier An authorization bypass vulnerability exists in sigstore/timestamp-authority verifier timestamp-authority/v2/pkg/verification: VerifyTimestampResponse function correctly verifies the certificate chain b...

GHSA-XM5M-WGH2-RRG3 Sigstore Timestamp Authority has Improper Certificate Validation in verifier

Authorization bypass via certificate bag manipulation in sigstore/timestamp-authority verifier An authorization bypass vulnerability exists in sigstore/timestamp-authority verifier timestamp-authority/v2/pkg/verification: VerifyTimestampResponse function correctly verifies the certificate chain b...

EUVD-2026-22813

Sigstore Timestamp Authority has Improper Certificate Validation in verifier...

CVE-2026-32281 vulnerabilities

Vulnerabilities for packages: govulncheck, lvm-driver, nri-discovery-kubernetes, ctop, docker-credential-ecr-login, kpt, sftpgo-plugin-auth, configmap-reload, nodetaint, aws-flb-kinesis, pulumi, swagger, docker-credential-acr-env, mc, openbao-k8s, argocd-image-updater, fuse-overlayfs-snapshotter,...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation through the Verifier.verifyleafcerts logic in src/rfc3161client/verify.py. An attacker can make a timestamp response from a trusted TSA verify as if it came from a different pinned TSA by injecting...

CVE-2026-34986 vulnerabilities

Vulnerabilities for packages: sftpgo-plugin-kms, falco-no-driver, zot, vexctl, crossplane-provider-terraform, gitlab-workhorse-ce-fips, spire-controller-manager-fips, gatus, dagger, flux-source-controller, knative-eventing-fips, knative-kafka-broker, distribution-fips, frankenphp-8.3, undock, kot...

Denial Of Service (DoS)

github.com/sigstore/timestamp-authority is vulnerable to Denial of Service DoS. The vulnerability is due to inefficient processing of untrusted input using string splitting in request parsing functions, which allows an attacker to send crafted inputs that trigger excessive memory allocations and...

SUSE CVE-2026-24122

Cosign provides code signing and transparency for containers and binaries. In versions 3.0.4 and below, an issuing certificate with a validity that expires before the leaf certificate will be considered valid during verification even if the provided timestamp would mean the issuing certificate...

CVE-2026-24122

Cosign provides code signing and transparency for containers and binaries. In versions 3.0.4 and below, an issuing certificate with a validity that expires before the leaf certificate will be considered valid during verification even if the provided timestamp would mean the issuing certificate...

CVE-2026-24122

Cosign provides code signing and transparency for containers and binaries. In versions 3.0.4 and below, an issuing certificate with a validity that expires before the leaf certificate will be considered valid during verification even if the provided timestamp would mean the issuing certificate...

GHSA-FW7P-63QQ-7HPR vulnerabilities

Vulnerabilities for packages: loki, dbmate, fulcio, sqlexporter, step-issuer, terragrunt, rekor, argo-workflows, hydra, crossplane-provider-sql, chezmoi, kots, mariadb-operator, kyverno-policy-reporter, k3s, tkn, dex, tailscale, dgraph, nuclei, trillian, witness, sftpgo, minio,...