Sigstore Timestamp Authority has OOM due to unbounded metric label cardinality

Impact An unauthenticated remote attacker can trigger unbounded memory growth on the timestamp authority server. This vulnerability exists because the global wrapMetrics middleware records the raw HTTP request path r.URL.Path and raw HTTP request method r.Method as Prometheus labels for latency a...

GO-2026-5763 Sigstore Timestamp Authority has Improper Certificate Validation in verifier in github.com/sigstore/timestamp-authority

Sigstore Timestamp Authority has Improper Certificate Validation in verifier in github.com/sigstore/timestamp-authority...

SUSE-SU-2026:22285-1 Security update for docker

This update for docker fixes the following issues - CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport when given bad SETTINGSMAXFRAMESIZE bsc1265782. - CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass...

OPENSUSE-SU-2026:20809-1 Security update for trivy

This update for trivy fixes the following issues - CVE-2025-64702: github.com/quic-go/quic-go/http3: quic-go HTTP/3 QPACK Header Expansion DoS bsc1255366. - CVE-2025-69725: github.com/go-chi/chi/v5: incorrect input validation in the RedirectSlashes function can lead to an open redirect bsc1258513...

JLSEC-2026-220 The X.509 GeneralName type is a generic type for representing different types of names

The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERALNAMEcmp which compares different instances of a GENERALNAME to see if they are equal or not. This function behaves incorrect...

SUSE 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

A flaw was found in timestamp-authority, specifically in the timestamp-authority/v2/pkg/verification package. An attacker can exploit this issue by prepending a forged certificate to the certificate bag while the message is signed with an authorized key. This causes the library to validate the...

DEBIAN-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 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...

UBUNTU-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

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...

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...

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 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...

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...