CVE-2026-49834: sigstore-go

csirt@kutim:~/threat-intel/cve/CVE-2026-49834

CVSS 7.5 · High EPSS 0,18%

Kerentanan Improper Verification of Cryptographic Signature pada sigstore-go. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLog(N>1) or WithSignedCertificateTimestamps(N>1) counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised transparency log or CT log to satisfy multi-log threshold requirements and defeat the multi-log policy. This issue is fixed in version 1.2.0.

Rincian

Terbit di NVD: 17 Juli 2026
Terakhir diubah: 30 Juli 2026
Status NVD: Analyzed
CVSS 3.1: 7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-347: Improper Verification of Cryptographic Signature
EPSS (30 hari): 0,18% peluang dieksploitasi; lebih tinggi dari 7,1% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
sigstore	sigstore-go	Semua versi sebelum 1.2.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/sigstore/sigstore-go/security/advisories/GHSA-9vcr-p3rj-q5q6 advisory vendor
https://github.com/sigstore/sigstore-go/commit/dbb07e62623edd5b175fb9dd5a41dcb85a159207 patch
https://github.com/sigstore/sigstore-go/pull/633 issue tracking · patch
https://github.com/sigstore/sigstore-go/releases/tag/v1.2.0 product · release notes

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.