CVE-2026-58101 Affecting perl-crypt-openssl-x509 package, versions <2.1.3-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE324-PERLCRYPTOPENSSLX509-18319744
- published26 Jul 2026
- disclosed13 Jul 2026
Introduced: 13 Jul 2026
CVE-2026-58101 (opens in a new tab)How to fix?
Upgrade Alpine:3.24 perl-crypt-openssl-x509 to version 2.1.3-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perl-crypt-openssl-x509 package and not the perl-crypt-openssl-x509 package as distributed by Alpine.
See How to fix? for Alpine:3.24 relevant fixed versions and status.
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.