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Linux Distros Unpatched Vulnerability : CVE-2026-33671

high Nessus Plugin ID 303991

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.

 - Picomatch is a glob matcher written JavaScript. Versions prior to 4.0.4, 3.0.2, and 2.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) when processing crafted extglob patterns. Certain patterns using extglob quantifiers such as `+()` and `*()`, especially when combined with overlapping alternatives or nested extglobs, are compiled into regular expressions that can exhibit catastrophic backtracking on non-matching input. Applications are impacted when they allow untrusted users to supply glob patterns that are passed to `picomatch` for compilation or matching. In those cases, an attacker can cause excessive CPU consumption and block the Node.js event loop, resulting in a denial of service. Applications that only use trusted, developer-controlled glob patterns are much less likely to be exposed in a security-relevant way.
 This issue is fixed in picomatch 4.0.4, 3.0.2 and 2.3.2. Users should upgrade to one of these versions or later, depending on their supported release line. If upgrading is not immediately possible, avoid passing untrusted glob patterns to `picomatch`. Possible mitigations include disabling extglob support for untrusted patterns by using `noextglob: true`, rejecting or sanitizing patterns containing nested extglobs or extglob quantifiers such as `+()` and `*()`, enforcing strict allowlists for accepted pattern syntax, running matching in an isolated worker or separate process with time and resource limits, and applying application-level request throttling and input validation for any endpoint that accepts glob patterns.
 (CVE-2026-33671)

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-2026-33671

Plugin Details

Severity: High

ID: 303991

File Name: unpatched_CVE_2026_33671.nasl

Version: 1.1

Type: local

Agent: unix

Family: Misc.

Published: 3/27/2026

Updated: 3/27/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2026-33671

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: p-cpe:/a:redhat:enterprise_linux:rust-std-static-x86_64-unknown-none, p-cpe:/a:redhat:enterprise_linux:rust-analysis, p-cpe:/a:centos:centos:rustfmt, p-cpe:/a:centos:centos:sgx-libs, p-cpe:/a:redhat:enterprise_linux:tdx-qgs, p-cpe:/a:redhat:enterprise_linux:rust-src, p-cpe:/a:redhat:enterprise_linux:rust-analyzer, p-cpe:/a:centos:centos:grafana-prometheus, p-cpe:/a:redhat:enterprise_linux:pcs, p-cpe:/a:redhat:enterprise_linux:nodejs-packaging-bundler, p-cpe:/a:redhat:enterprise_linux:cargo, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:grafana-influxdb, p-cpe:/a:redhat:enterprise_linux:rust, p-cpe:/a:centos:centos:grafana-stackdriver, p-cpe:/a:redhat:enterprise_linux:nodejs24-libs, p-cpe:/a:redhat:enterprise_linux:nodejs-devel, p-cpe:/a:redhat:enterprise_linux:grafana-influxdb, p-cpe:/a:redhat:enterprise_linux:clippy, p-cpe:/a:centos:centos:grafana-elasticsearch, p-cpe:/a:centos:centos:nodejs-docs, p-cpe:/a:centos:centos:grafana-azure-monitor, p-cpe:/a:centos:centos:rust-std-static-wasm32-unknown-unknown, p-cpe:/a:centos:centos:grafana-opentsdb, p-cpe:/a:redhat:enterprise_linux:rust-std-static-wasm32-wasip1, p-cpe:/a:centos:centos:sgx-mpa, p-cpe:/a:redhat:enterprise_linux:nodejs24-full-i18n, p-cpe:/a:redhat:enterprise_linux:grafana-postgres, p-cpe:/a:centos:centos:grafana-graphite, p-cpe:/a:redhat:enterprise_linux:nodejs24-devel, p-cpe:/a:centos:centos:rust-std-static-x86_64-unknown-none, p-cpe:/a:centos:centos:nodejs, p-cpe:/a:redhat:enterprise_linux:grafana-prometheus, p-cpe:/a:redhat:enterprise_linux:rust-toolset, p-cpe:/a:centos:centos:npm, p-cpe:/a:redhat:enterprise_linux:nodejs-npm, p-cpe:/a:centos:centos:rust-analysis, p-cpe:/a:centos:centos:nodejs-packaging, p-cpe:/a:redhat:enterprise_linux:rust-std-static-wasm32-wasi, p-cpe:/a:centos:centos:rust-std-static-wasm32-wasip1, p-cpe:/a:centos:centos:pcs, p-cpe:/a:centos:centos:pcs-snmp, p-cpe:/a:centos:centos:nodejs22, p-cpe:/a:redhat:enterprise_linux:grafana-cloudwatch, p-cpe:/a:redhat:enterprise_linux:npm, p-cpe:/a:centos:centos:nodejs24-devel, p-cpe:/a:centos:centos:grafana-postgres, p-cpe:/a:centos:centos:grafana, p-cpe:/a:redhat:enterprise_linux:rustfmt, p-cpe:/a:redhat:enterprise_linux:grafana-stackdriver, p-cpe:/a:centos:centos:tdx-qgs, p-cpe:/a:redhat:enterprise_linux:grafana-azure-monitor, p-cpe:/a:centos:centos:rust-debugger-common, p-cpe:/a:centos:centos:grafana-cloudwatch, p-cpe:/a:redhat:enterprise_linux:nodejs24, p-cpe:/a:redhat:enterprise_linux:nodejs22, p-cpe:/a:redhat:enterprise_linux:grafana-opentsdb, p-cpe:/a:redhat:enterprise_linux:grafana-elasticsearch, p-cpe:/a:centos:centos:grafana-loki, p-cpe:/a:centos:centos:v8-12.4-devel, p-cpe:/a:redhat:enterprise_linux:v8-13.6-devel, p-cpe:/a:centos:centos:grafana-mysql, p-cpe:/a:centos:centos:rust-src, p-cpe:/a:centos:centos:rust-std-static-aarch64-unknown-none-softfloat, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:rust-analyzer, p-cpe:/a:redhat:enterprise_linux:grafana-loki, p-cpe:/a:redhat:enterprise_linux:nodejs24-docs, p-cpe:/a:redhat:enterprise_linux:v8-12.4-devel, p-cpe:/a:redhat:enterprise_linux:rust-std-static-aarch64-unknown-none-softfloat, p-cpe:/a:redhat:enterprise_linux:nodejs-nodemon, p-cpe:/a:redhat:enterprise_linux:nodejs-docs, p-cpe:/a:redhat:enterprise_linux:nodejs-libs, p-cpe:/a:redhat:enterprise_linux:rust-std-static-wasm32-unknown-unknown, p-cpe:/a:centos:centos:nodejs24-docs, p-cpe:/a:centos:centos:nodejs24-libs, p-cpe:/a:redhat:enterprise_linux:rust-debugger-common, p-cpe:/a:centos:centos:nodejs-libs, p-cpe:/a:redhat:enterprise_linux:pcs-snmp, p-cpe:/a:centos:centos:rust-gdb, p-cpe:/a:centos:centos:nodejs-devel, p-cpe:/a:redhat:enterprise_linux:rust-std-static, p-cpe:/a:centos:centos:nodejs24, p-cpe:/a:redhat:enterprise_linux:nodejs-full-i18n, p-cpe:/a:centos:centos:rust-toolset, p-cpe:/a:centos:centos:rust, p-cpe:/a:redhat:enterprise_linux:sgx-pckid-tool, p-cpe:/a:centos:centos:nodejs-full-i18n, p-cpe:/a:centos:centos:nodejs-npm, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:grafana-selinux, p-cpe:/a:centos:centos:rust-std-static, p-cpe:/a:redhat:enterprise_linux:sgx-libs, p-cpe:/a:redhat:enterprise_linux:grafana-selinux, p-cpe:/a:redhat:enterprise_linux:nodejs24-npm, p-cpe:/a:redhat:enterprise_linux:sgx-common, p-cpe:/a:redhat:enterprise_linux:grafana-graphite, p-cpe:/a:centos:centos:nodejs24-full-i18n, p-cpe:/a:centos:centos:sgx-common, p-cpe:/a:redhat:enterprise_linux:grafana-mysql, p-cpe:/a:centos:centos:rust-lldb, p-cpe:/a:centos:centos:nodejs24-npm, p-cpe:/a:redhat:enterprise_linux:rust-doc, p-cpe:/a:centos:centos:nodejs-nodemon, p-cpe:/a:centos:centos:rust-std-static-wasm32-wasi, p-cpe:/a:redhat:enterprise_linux:nodejs, p-cpe:/a:centos:centos:sgx-pckid-tool, p-cpe:/a:redhat:enterprise_linux:sgx-mpa, p-cpe:/a:centos:centos:grafana-mssql, p-cpe:/a:centos:centos:cargo, p-cpe:/a:centos:centos:v8-13.6-devel, p-cpe:/a:centos:centos:rust-doc, p-cpe:/a:redhat:enterprise_linux:nodejs-packaging, p-cpe:/a:redhat:enterprise_linux:rust-gdb, p-cpe:/a:redhat:enterprise_linux:rust-lldb, p-cpe:/a:centos:centos:clippy, p-cpe:/a:redhat:enterprise_linux:grafana-mssql, p-cpe:/a:centos:centos:nodejs-packaging-bundler, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:centos:centos:rust-toolset-srpm-macros, p-cpe:/a:redhat:enterprise_linux:grafana, p-cpe:/a:redhat:enterprise_linux:rust-toolset-srpm-macros

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/25/2026

Reference Information

CVE: CVE-2026-33671