CVE-2026-1528

ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cna.openjsf.org/security-advisories.html	Vendor Advisory
https://github.com/nodejs/undici/security/advisories/GHSA-f269-vfmq-vjvj	Vendor Advisory
https://hackerone.com/reports/3537648	Permissions Required
https://access.redhat.com/errata/RHSA-2026:13826
https://access.redhat.com/errata/RHSA-2026:17789
https://access.redhat.com/errata/RHSA-2026:21772
https://access.redhat.com/errata/RHSA-2026:21931
https://access.redhat.com/errata/RHSA-2026:34342
https://access.redhat.com/errata/RHSA-2026:5807
https://access.redhat.com/errata/RHSA-2026:7080
https://access.redhat.com/errata/RHSA-2026:7123
https://access.redhat.com/errata/RHSA-2026:7302
https://access.redhat.com/errata/RHSA-2026:7310
https://access.redhat.com/errata/RHSA-2026:7350
https://access.redhat.com/errata/RHSA-2026:7670
https://access.redhat.com/errata/RHSA-2026:7675
https://access.redhat.com/errata/RHSA-2026:7983
https://access.redhat.com/errata/RHSA-2026:9742
https://access.redhat.com/security/cve/CVE-2026-1528
https://bugzilla.redhat.com/show_bug.cgi?id=2447145
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1528.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nodejs:undici::::::node.js::*
	cpe:2.3:a:nodejs:undici::::::node.js::*

History

No history.

Information

Published : 2026-03-12 21:16

Updated : 2026-09-04 13:18

NVD link : CVE-2026-1528

Mitre link : CVE-2026-1528

CVE.ORG link : CVE-2026-1528

JSON object : View

Products Affected

nodejs

undici

CWE

CWE-248

Uncaught Exception

CWE-1284

Improper Validation of Specified Quantity in Input

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"devspaces/code-sshd-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift_devspaces:3"], "vendor": "Red Hat", "product": "Red Hat OpenShift Dev Spaces", "packageName": "devspaces/openvsx-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ansible_portal:2"], "vendor": "Red Hat", "product": "Self-service automation portal 2", "packageName": "ansible-automation-platform/automation-portal", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-03-12T21:16:25.330", "references": [{"url": "https://cna.openjsf.org/security-advisories.html", "tags": ["Vendor Advisory"], "source": "ce714d77-add3-4f53-aff5-83d477b104bb"}, {"url": "https://github.com/nodejs/undici/security/advisories/GHSA-f269-vfmq-vjvj", "tags": ["Vendor 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"https://access.redhat.com/errata/RHSA-2026:7123", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:7302", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:7310", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:7350", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:7670", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:7675", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:7983", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:9742", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-1528", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447145", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1528.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "ce714d77-add3-4f53-aff5-83d477b104bb", "description": [{"lang": "en", "value": "CWE-248"}, {"lang": "en", "value": "CWE-1284"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-248"}]}], "descriptions": [{"lang": "en", "value": "ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process.\n\nPatches\n\nPatched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later."}, {"lang": "es", "value": "Impacto\nUn servidor puede responder con un marco WebSocket utilizando el formato de longitud de 64 bits y una longitud extremadamente grande. El ByteParser de undici desborda las operaciones matem\u00e1ticas internas, termina en un estado inv\u00e1lido y lanza un TypeError fatal que termina el proceso.\n\nParches\n\nParcheado en la versi\u00f3n v7.24.0 y v6.24.0 de undici. Los usuarios deben actualizar a esta versi\u00f3n o posterior."}], "lastModified": "2026-09-04T13:18:18.160", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "C08CE582-019D-4A06-910A-6010C2D6EF4F", "versionEndExcluding": "6.24.0"}, {"criteria": "cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "F016E7D9-C45A-4DEF-9AD8-F0581AF5E509", "versionEndExcluding": "7.24.0", "versionStartIncluding": "7.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "ce714d77-add3-4f53-aff5-83d477b104bb"}