CVE-2026-69248

Katalog CVE

CVSS 6.9 · Medium EPSS 0,31%

Kerentanan Improper Certificate Validation. Skor CVSS 4.0 6.9 (Medium) menurut github.com.

Deskripsi (NVD)

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In versions 45.0.0 through 48.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches, where a wildcard pattern was treated as matching a more-specific permitted constraint even though *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows acceptance of an invalid certificate chain. This issue is fixed in 49.0.0.

Rincian

Terbit di NVD

3 Agustus 2026

Terakhir diubah

10 September 2026

Status NVD

Awaiting Analysis

CVSS 4.0

6.9 (Medium), sumber github.com
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-295: Improper Certificate Validation

EPSS (30 hari)

0,31% peluang dieksploitasi; lebih tinggi dari 21,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/pyca/cryptography/commit/4d035a4225965edeffd312079a510ef25fcfdcb2
• https://github.com/pyca/cryptography/pull/14888
• https://github.com/pyca/cryptography/security/advisories/GHSA-m2h6-j472-rp4c