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Fedora 43 : kryoptic / pyOpenSSL / python-cryptography / rust-asn1 / etc (2026-9d5b9f45ec)

critical Nessus Plugin ID 303921

Synopsis

The remote Fedora host is missing one or more security updates.

Description

The remote Fedora 43 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-9d5b9f45ec advisory.

 - Update pyOpenSSL to v26.0.0 (security update)
 - Update python-cryptography to v46.0.5 (dependency of pyOpenSSL 26)
 - Update rust-asn1 to 0.22 (dependency of python-cryptography)
 - Update kryoptic to v1.5 (required for rust-asn1 bump to 0.22)

 The security status of this update is _only_ for pyOpenSSL.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2026-9d5b9f45ec

Plugin Details

Severity: Critical

ID: 303921

File Name: fedora_2026-9d5b9f45ec.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/26/2026

Updated: 3/26/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-27459

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:rust-cryptoki-sys, p-cpe:/a:fedoraproject:fedora:rust-asn1, p-cpe:/a:fedoraproject:fedora:rust-cryptoki, p-cpe:/a:fedoraproject:fedora:python-cryptography, p-cpe:/a:fedoraproject:fedora:rust-asn1_derive, p-cpe:/a:fedoraproject:fedora:rust-wycheproof, p-cpe:/a:fedoraproject:fedora:pyopenssl, p-cpe:/a:fedoraproject:fedora:kryoptic, cpe:/o:fedoraproject:fedora:43

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/19/2026

Vulnerability Publication Date: 3/16/2026

Reference Information

CVE: CVE-2026-27459