CVE-2026-58101Disclosure(jonasbn / crypt\)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

jonasbn CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Patch / fix

https://github.com/dsully/perl-crypt-openssl-x509/commit/4c1e2370556097c253ae27abe9e1097ea377fbd2.patch

Other references

https://metacpan.org/release/JONASBN/Crypt-OpenSSL-X509-2.1.3/source/Changes.md

Weakness type (CWE)

CWE-476

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

crypt\

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

jonasbn

Products

crypt\

1 version affected across 1 product

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets2 URLs

By indicator

Full discourse1 post

Open Source Security mailing list@oss_security91d
Disclosure
Perl CPAN CVE-2026-57433: Storable before 3.41 have a signed integer overflow when deserializing a crafted SX_HOOK record https://www.openwall.com/lists/oss-security/2026/07/13/7 2 CVEs Crypt::OpenSSL::X509 before 2.1.3 https://www.openwall.com/lists/oss-security/2026/07/13/8 CVE-2026-58101: DoS via NULL ptr deref CVE-2026-58102: Heap OOB read
Post summary
The text announces four new Perl CPAN CVEs, detailing their vulnerability types but providing no PoC, exploit code, patch information, or evidence of active exploitation.
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CPE platform detail1 entries

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Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	jonasbn	crypt\	\	-	-

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