CVE-2026-57826

An issue was discovered in openHiTLS 0.2.0 through 0.3.2. In the X.509 certificate chain...

6.8 Medium

An issue was discovered in openHiTLS 0.2.0 through 0.3.2. In the X.509 certificate chain verification, the basic constraints extension and CA flag processing of intermediate CAs are only verified for v3 certificates, and v1/v2 certificates are ignored.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.27%Up 0.2 points since Aug 19, 2026

What each source reports

CVE List Score used 6.8

Record: CVE-2026-57826
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-295
Updated: 2026-11-02

EUVDEUVD-2026-61278 6.8

Record: EUVD-2026-61278
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-3q3x-px7h-qhq2 9.8

An issue was discovered in openHiTLS 0.2.0 through 0.3.2. In the X.509 certificate chain...

Record: GHSA-3q3x-px7h-qhq2
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-295
Updated: 2026-11-02

NVD 6.8

Record: CVE-2026-57826
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-295
Updated: 2026-11-09

OSV 6.8

Record: CVE-2026-57826
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

History

History
Recorded	Changed	Sources
Nov 9, 2026	facts	NVD
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-57826 is a medium vulnerability (CVSS 6.8), published August 18, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. No source names a fixed version.