CVE-2026-8507

Critical

Description

Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl have out-of-bounds (OOB) write flaws. When parsing a PKCS12 file, with a >= 1 GiB OCTET STRING (or BIT STRING) attribute on a SAFEBAG, via info() or info_as_hash(), a heap out-of-bounds write would be triggered with remote-code-execution potential (RCE) due to a signed integer overflow in the size calculation passed to Renew().

SeverityCritical
CVSS9.8
Exploit probability—
ProductCrypt::OpenSSL::PKCS12
PublishedMay 17, 2026
First seenMay 17, 2026

How to fix

Affected products

ProductAffected versionsFixed in
JONASBN Crypt::OpenSSL::PKCS12v ≤ 1.94—

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CVE-2026-8507 · Crypt::OpenSSL::PKCS12 · Dark Radar