CVE-2026-58101 | Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow de…

Description

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3_EXT_d2i(ext) returns NULL when an extension's DER value fails to parse. basicC, ia5string, and auth_att dereference its result without a NULL check. keyid_data also dereferences akid->keyid, which is NULL for an empty AKI SEQUENCE (DER 30 00) even when the parse succeeds. A caller invoking an affected helper on an extension from an untrusted certificate triggers a SIGSEGV that crashes the Perl process.

Metadata

CVE ID: CVE-2026-58101
State: PUBLISHED
Assigner: CPANSec
Reserved: 2026-06-29 06:35 UTC
Published: 2026-07-13 22:17 UTC
Last updated: 2026-07-13 22:17 UTC
Primary CWE: CWE-476
CWE-476 NULL Pointer Dereference
Vendor / Product: JONASBN / Crypt::OpenSSL::X509
Sources: cve.org · NVD

Severity & Metrics

No CVSS data available.

Affected products (1)

Vendor	Product	Platform	Versions
JONASBN	Crypt::OpenSSL::X509	—	0 < 2.1.3

Weakness (CWE)

CWE	Source	Description
CWE-476	cna	CWE-476 NULL Pointer Dereference

References (2)