Description
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.
References6
- gitcode.com/openHiTLS/openhitls/pull/1399
- gitcode.com/openHiTLS/openhitls/pull/1657
- github.com/openHiTLS/openHiTLS/commit/2d3b221d113b452bc197012b1…
- github.com/openHiTLS/openHiTLS/commit/4355cdf5b043d5b9ef698f8f5…
- github.com/openHiTLS/openHiTLS/compare/openhitls-0.3.2...openhi…
- www.openhitls.net/zh/support/HTLS-2026-001.html
Metrics
- CVSS 3.1
-
6.8
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N - EPSS — exploit probability
- 0% percentile: 19 · as of 11 November 2026
- CWE
- CWE-295
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.