CVE-2026-9058

For untrusted certificates that contain the "Authority Information Access - caIssuers URI" extension, Szafir SDK will automatically download the parent CA certificate from the specified URL and will import it to its trust store as a "nonqualified" certificate. In such a case, Szafir SDK returns a success status code of 0 ("Positively verified") upon successful cryptographic verification and a certificate status of "nonqualified". For other types of untrusted certificates, Szafir SDK returns a success status code of 0 ("Positively verified") upon successful cryptographic verification and a certificate status of "nondetermined". This may lead integrating applications to incorrectly treat the digital signature as valid despite an untrusted certificate chain. This flaw enables authentication bypass and user impersonation: (1) in use-cases other than qualified certificate authentication, or (2) if the qualified certificate authentication use-case is not correctly implemented by the integrating application. This issue was fixed in version 1.8.463.2.

CVSS

No CVSS.

References

Link	Resource
https://cert.pl/posts/2026/05/CVE-2026-9058
https://www.elektronicznypodpis.pl/

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-25 14:16

Updated : 2026-07-23 12:18

NVD link : CVE-2026-9058

Mitre link : CVE-2026-9058

CVE.ORG link : CVE-2026-9058

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

CWE-393

Return of Wrong Status Code

CWE-637

Unnecessary Complexity in Protection Mechanism (Not Using 'Economy of Mechanism')

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