What’s Vulnerable › Vulnerabilities

CVE-2026-57826

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-18 · updated 2026-08-31
• Weakness: CWE-295

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.

References

• https://gitcode.com/openHiTLS/openhitls/pull/1399
• https://gitcode.com/openHiTLS/openhitls/pull/1657
• https://github.com/openHiTLS/openHiTLS/commit/2d3b221d113b452bc197012b185978b8314ee8a4
• https://github.com/openHiTLS/openHiTLS/commit/4355cdf5b043d5b9ef698f8f57860f77f8e92561
• https://github.com/openHiTLS/openHiTLS/compare/openhitls-0.3.2...openhitls-0.3.3
• https://www.openhitls.net/zh/support/HTLS-2026-001.html

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