CVE-2026-43823
High · 7.5CVSS
7.5
EPSS
0.4%
Published
Jul 23, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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