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Vulnerability details: VCID-jbws-qjq3-qbhq
Vulnerability ID VCID-jbws-qjq3-qbhq
Aliases CVE-2026-21636
Summary nodejs: Nodejs network segmentation bypass
Status Published
Exploitability 0.5
Weighted Severity 5.2
Risk 2.6
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-281 Improper Preservation of Permissions
System Score Found at
cvssv3 5.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-21636.json
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
epss 0.00023 https://api.first.org/data/v1/epss?cve=CVE-2026-21636
cvssv3.1 8.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3 5.8 https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
ssvc Track https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-21636.json
https://api.first.org/data/v1/epss?cve=CVE-2026-21636
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2431342 https://bugzilla.redhat.com/show_bug.cgi?id=2431342
december-2025-security-releases https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
RHSA-2026:6402 https://access.redhat.com/errata/RHSA-2026:6402
RHSA-2026:6431 https://access.redhat.com/errata/RHSA-2026:6431
RHSA-2026:7386 https://access.redhat.com/errata/RHSA-2026:7386
RHSA-2026:7387 https://access.redhat.com/errata/RHSA-2026:7387
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-21636.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N Found at https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-01-21T18:38:13Z/ Found at https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
Exploit Prediction Scoring System (EPSS)
Percentile 0.06241
EPSS Score 0.00023
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:32:29.002949+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-21636.json 38.0.0