Vulnerability details
CVE-2026-1528
Red Hat OpenShift LightspeedRed Hat OpenShift PipelinesRed Hat Developer HubRed Hat OpenShift AIRed Hat Self-service automation portal 2undici undici
undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client
CVSS 3.1
7.5High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (openjs) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Red Hat | OpenShift Lightspeed | All | CVEProject cvelistV5 (CNA) |
| Red Hat | OpenShift Lightspeed | All | CVEProject cvelistV5 (CNA) |
| Red Hat | OpenShift Pipelines | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Developer Hub | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat OpenShift AI (RHOAI) | All | CVEProject cvelistV5 (CNA) |
| Red Hat | Self-service automation portal 2 | All | CVEProject cvelistV5 (CNA) |
| undici | undici | >= 6.0.0 < 6.24.0; 7.0.0 < 7.24.0 | CVEProject cvelistV5 (CNA) |
References and advisories
21- https://github.com/nodejs/undici/security/advisories/GHSA-f269-vfmq-vjvj
- https://hackerone.com/reports/3537648
- https://cna.openjsf.org/security-advisories.html
- https://access.redhat.com/security/cve/CVE-2026-1528 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2447145 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1528.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:17789 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:7310 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:7080 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:7675 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:7123 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:7670 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:7983 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:7302 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:7350 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:34342 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:9742 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:13826 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:5807 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21772 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:21931 vendor-advisoryx_refsource_REDHAT
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Details
- Published
- 2026-03-12
- Last updated
- 2026-09-14
- State
- Published
- Assigner (CNA)
- openjs
Exploit prediction (EPSS)
0.56%
Probability of exploitation in 30 days
46.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-1284Improper validation of specified quantity in input
- CWE-248Uncaught exception