CVE-2026-43823

When initializing an RSA public key from DER or PEM bytes throws an error, the EVP_PKEY* is double-freed: first in the catch block, then in the deinit. This can lead to a crash on future memory allocations. This double-free manifests when BoringSSL cannot decode the public key from the bytes provided. This vulnerability is addressed in swift-crypto version 4.5.1.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/apple/swift-crypto/security/advisories/GHSA-8q93-f6xh-4f6f	Vendor Advisory
https://github.com/apple/swift-crypto/security/advisories/GHSA-8q93-f6xh-4f6f	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apple:swift-crypto:*:*:*:*:*:swift:*:*

History

No history.

Information

Published : 2026-07-23 15:17

Updated : 2026-09-04 18:17

NVD link : CVE-2026-43823

Mitre link : CVE-2026-43823

CVE.ORG link : CVE-2026-43823

JSON object : View

Products Affected

apple

swift-crypto

CWE

CWE-415

Double Free

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