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7.5High

CVE-2026-1528undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client

undici undici; Red Hat Cryostat 4 on RHEL 9; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Published: (8 months ago)

Description

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.

Weakness (CWE): CWE-248CWE-1284

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
cluster observability operator 1.5 —
cryostat 4 —
nodejs undici < 6.24.0
openshift ai 2.16 —
openshift devspaces 3.28 —
openshift pipelines 1.20 —
Red Hat Cluster Observability Operator 1.5.0 all versions
Red Hat Cryostat 4 on RHEL 9 all versions
Red Hat OpenShift Lightspeed all versions
Red Hat OpenShift Pipelines all versions
Red Hat Red Hat Developer Hub all versions
Red Hat Red Hat Developer Hub 1.8 all versions
Red Hat Red Hat Developer Hub 1.9 all versions
Red Hat Red Hat Enterprise Linux 10 all versions
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support all versions
Red Hat Red Hat Enterprise Linux 8 all versions
Red Hat Red Hat Enterprise Linux 9 all versions
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support all versions
Red Hat Red Hat JBoss Enterprise Application Platform 8 —
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack —
Red Hat Red Hat OpenShift AI 2.16 all versions
Red Hat Red Hat OpenShift AI (RHOAI) all versions
Red Hat Red Hat OpenShift Dev Spaces —
Red Hat Red Hat OpenShift Dev Spaces 3.28 all versions
Red Hat Red Hat OpenShift Pipelines 1.2 all versions
Red Hat Self-service automation portal 2 all versions
rhdh 1.8 —
rhdh 1.9 —
undici undici >= 6.0.0 < 6.24.0; 7.0.0 < 7.24.0, fixed 6.24.0: 7.24.0

References and patches

CPE matches (NVD) (2)
  • cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:* < 6.24.0
  • cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:* ≥ 7.0.0 < 7.24.0

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