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Linux Distros Unpatched Vulnerability : CVE-2026-119194

high Nessus Plugin ID 374111

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - pyasn1 is a generic ASN.1 library for Python. From 0.3.3 until 0.6.5, schemaless container decoding stores every decoded component's TagSet in a growing set even though only one-versus-multiple tag types must be distinguished. Attacker-controlled BER, CER, or DER input contains many distinct long tag IDs whose TagSet hashes collide. Each later set insertion compares against an increasing number of earlier colliding tags in ConstructedPayloadDecoderBase._decodeComponentsSchemaless, producing quadratic CPU work while decoded values and order remain valid. Repeated inputs can exhaust decoder CPU and reduce service availability.
 This issue is fixed in version 0.6.5. (CVE-2026-119194)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-119194

https://security-tracker.debian.org/tracker/CVE-2026-119194

Plugin Details

Severity: High

ID: 374111

File Name: unpatched_CVE_2026_119194.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 10/30/2026

Updated: 10/30/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-119194

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:fence-agents-aliyun, p-cpe:/a:centos:centos:fence-agents-all, p-cpe:/a:centos:centos:fence-agents-amt-ws, p-cpe:/a:centos:centos:fence-agents-apc-snmp, p-cpe:/a:centos:centos:fence-agents-apc, p-cpe:/a:centos:centos:fence-agents-aws, p-cpe:/a:centos:centos:fence-agents-azure-arm, p-cpe:/a:centos:centos:fence-agents-bladecenter, p-cpe:/a:centos:centos:fence-agents-brocade, p-cpe:/a:centos:centos:fence-agents-cisco-mds, p-cpe:/a:centos:centos:fence-agents-cisco-ucs, p-cpe:/a:centos:centos:fence-agents-common, p-cpe:/a:centos:centos:fence-agents-compute, p-cpe:/a:centos:centos:fence-agents-drac5, p-cpe:/a:centos:centos:fence-agents-eaton-snmp, p-cpe:/a:centos:centos:fence-agents-emerson, p-cpe:/a:centos:centos:fence-agents-eps, p-cpe:/a:centos:centos:fence-agents-gce, p-cpe:/a:centos:centos:fence-agents-heuristics-ping, p-cpe:/a:centos:centos:fence-agents-hpblade, p-cpe:/a:centos:centos:fence-agents-ibm-powervs, p-cpe:/a:centos:centos:fence-agents-ibm-vpc, p-cpe:/a:centos:centos:fence-agents-ibmblade, p-cpe:/a:centos:centos:fence-agents-ifmib, p-cpe:/a:centos:centos:fence-agents-ilo-moonshot, p-cpe:/a:centos:centos:fence-agents-ilo-mp, p-cpe:/a:centos:centos:fence-agents-ilo-ssh, p-cpe:/a:centos:centos:fence-agents-ilo2, p-cpe:/a:centos:centos:fence-agents-intelmodular, p-cpe:/a:centos:centos:fence-agents-ipdu, p-cpe:/a:centos:centos:fence-agents-ipmilan, p-cpe:/a:centos:centos:fence-agents-kdump, p-cpe:/a:centos:centos:fence-agents-kubevirt, p-cpe:/a:centos:centos:fence-agents-lpar, p-cpe:/a:centos:centos:fence-agents-mpath, p-cpe:/a:centos:centos:fence-agents-nutanix-ahv, p-cpe:/a:centos:centos:fence-agents-openstack, p-cpe:/a:centos:centos:fence-agents-redfish, p-cpe:/a:centos:centos:fence-agents-rhevm, p-cpe:/a:centos:centos:fence-agents-rsa, p-cpe:/a:centos:centos:fence-agents-rsb, p-cpe:/a:centos:centos:fence-agents-sbd, p-cpe:/a:centos:centos:fence-agents-scsi, p-cpe:/a:centos:centos:fence-agents-virsh, p-cpe:/a:centos:centos:fence-agents-vmware-rest, p-cpe:/a:centos:centos:fence-agents-vmware-soap, p-cpe:/a:centos:centos:fence-agents-wti, p-cpe:/a:centos:centos:fence-agents-zvm, p-cpe:/a:centos:centos:fence-agents, p-cpe:/a:centos:centos:fence-virt, p-cpe:/a:centos:centos:fence-virtd-cpg, p-cpe:/a:centos:centos:fence-virtd-libvirt, p-cpe:/a:centos:centos:fence-virtd-multicast, p-cpe:/a:centos:centos:fence-virtd-serial, p-cpe:/a:centos:centos:fence-virtd-tcp, p-cpe:/a:centos:centos:fence-virtd, p-cpe:/a:centos:centos:ha-cloud-support, p-cpe:/a:centos:centos:python-pyasn1, p-cpe:/a:centos:centos:python3-pyasn1-modules, p-cpe:/a:centos:centos:python3-pyasn1, p-cpe:/a:centos:centos:resource-agents-aliyun, p-cpe:/a:centos:centos:resource-agents-gcp, p-cpe:/a:centos:centos:resource-agents-paf, p-cpe:/a:centos:centos:resource-agents-sap-hana-scaleout, p-cpe:/a:centos:centos:resource-agents-sap-hana, p-cpe:/a:centos:centos:resource-agents-sap, p-cpe:/a:centos:centos:resource-agents, p-cpe:/a:centos:centos:sap-cluster-connector, p-cpe:/a:debian:debian_linux:pyasn1, p-cpe:/a:redhat:enterprise_linux:fence-agents-aliyun, p-cpe:/a:redhat:enterprise_linux:fence-agents-all, p-cpe:/a:redhat:enterprise_linux:fence-agents-amt-ws, p-cpe:/a:redhat:enterprise_linux:fence-agents-apc-snmp, p-cpe:/a:redhat:enterprise_linux:fence-agents-apc, p-cpe:/a:redhat:enterprise_linux:fence-agents-aws, p-cpe:/a:redhat:enterprise_linux:fence-agents-azure-arm, p-cpe:/a:redhat:enterprise_linux:fence-agents-bladecenter, p-cpe:/a:redhat:enterprise_linux:fence-agents-brocade, p-cpe:/a:redhat:enterprise_linux:fence-agents-cisco-mds, p-cpe:/a:redhat:enterprise_linux:fence-agents-cisco-ucs, p-cpe:/a:redhat:enterprise_linux:fence-agents-common, p-cpe:/a:redhat:enterprise_linux:fence-agents-compute, p-cpe:/a:redhat:enterprise_linux:fence-agents-drac5, p-cpe:/a:redhat:enterprise_linux:fence-agents-eaton-snmp, p-cpe:/a:redhat:enterprise_linux:fence-agents-emerson, p-cpe:/a:redhat:enterprise_linux:fence-agents-eps, p-cpe:/a:redhat:enterprise_linux:fence-agents-gce, p-cpe:/a:redhat:enterprise_linux:fence-agents-heuristics-ping, p-cpe:/a:redhat:enterprise_linux:fence-agents-hpblade, p-cpe:/a:redhat:enterprise_linux:fence-agents-ibm-powervs, p-cpe:/a:redhat:enterprise_linux:fence-agents-ibm-vpc, p-cpe:/a:redhat:enterprise_linux:fence-agents-ibmblade, p-cpe:/a:redhat:enterprise_linux:fence-agents-ifmib, p-cpe:/a:redhat:enterprise_linux:fence-agents-ilo-moonshot, p-cpe:/a:redhat:enterprise_linux:fence-agents-ilo-mp, p-cpe:/a:redhat:enterprise_linux:fence-agents-ilo-ssh, p-cpe:/a:redhat:enterprise_linux:fence-agents-ilo2, p-cpe:/a:redhat:enterprise_linux:fence-agents-intelmodular, p-cpe:/a:redhat:enterprise_linux:fence-agents-ipdu, p-cpe:/a:redhat:enterprise_linux:fence-agents-ipmilan, p-cpe:/a:redhat:enterprise_linux:fence-agents-kdump, p-cpe:/a:redhat:enterprise_linux:fence-agents-kubevirt, p-cpe:/a:redhat:enterprise_linux:fence-agents-lpar, p-cpe:/a:redhat:enterprise_linux:fence-agents-mpath, p-cpe:/a:redhat:enterprise_linux:fence-agents-nutanix-ahv, p-cpe:/a:redhat:enterprise_linux:fence-agents-openstack, p-cpe:/a:redhat:enterprise_linux:fence-agents-redfish, p-cpe:/a:redhat:enterprise_linux:fence-agents-rhevm, p-cpe:/a:redhat:enterprise_linux:fence-agents-rsa, p-cpe:/a:redhat:enterprise_linux:fence-agents-rsb, p-cpe:/a:redhat:enterprise_linux:fence-agents-sbd, p-cpe:/a:redhat:enterprise_linux:fence-agents-scsi, p-cpe:/a:redhat:enterprise_linux:fence-agents-virsh, p-cpe:/a:redhat:enterprise_linux:fence-agents-vmware-rest, p-cpe:/a:redhat:enterprise_linux:fence-agents-vmware-soap, p-cpe:/a:redhat:enterprise_linux:fence-agents-wti, p-cpe:/a:redhat:enterprise_linux:fence-agents-zvm, p-cpe:/a:redhat:enterprise_linux:fence-agents, p-cpe:/a:redhat:enterprise_linux:fence-virt, p-cpe:/a:redhat:enterprise_linux:fence-virtd-cpg, p-cpe:/a:redhat:enterprise_linux:fence-virtd-libvirt, p-cpe:/a:redhat:enterprise_linux:fence-virtd-multicast, p-cpe:/a:redhat:enterprise_linux:fence-virtd-serial, p-cpe:/a:redhat:enterprise_linux:fence-virtd-tcp, p-cpe:/a:redhat:enterprise_linux:fence-virtd, p-cpe:/a:redhat:enterprise_linux:ha-cloud-support, p-cpe:/a:redhat:enterprise_linux:python-pyasn1, p-cpe:/a:redhat:enterprise_linux:python3-pyasn1-modules, p-cpe:/a:redhat:enterprise_linux:python3-pyasn1, p-cpe:/a:redhat:enterprise_linux:resource-agents-aliyun, p-cpe:/a:redhat:enterprise_linux:resource-agents-gcp, p-cpe:/a:redhat:enterprise_linux:resource-agents-paf, p-cpe:/a:redhat:enterprise_linux:resource-agents-sap-hana-scaleout, p-cpe:/a:redhat:enterprise_linux:resource-agents-sap-hana, p-cpe:/a:redhat:enterprise_linux:resource-agents-sap, p-cpe:/a:redhat:enterprise_linux:resource-agents, p-cpe:/a:redhat:enterprise_linux:sap-cluster-connector

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/29/2026

Reference Information

CVE: CVE-2026-119194