CVE-2026-5447
High · 7.5CVSS
7.5
EPSS
0.2%
Published
Apr 9, 2026
CISA due date
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The record
Heap buffer overflow in CertFromX509 via AuthorityKeyIdentifier size confusion. A heap buffer overflow occurs when converting an X.509 certificate internally due to incorrect size handling of the AuthorityKeyIdentifier extension.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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