ws Memory Exhaustion DoS Node.js <5.2.5 6.2.4 7.5.11 8.21.0
CVE-2026-48779 Published on June 16, 2026

Vulnerability Analysis

Weakness Types

Products Associated with CVE-2026-48779

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Affected Versions

websockets ws:

• Version >= 1.1.0, < 5.2.5 is affected.
• Version >= 6.0.0, < 6.2.4 is affected.
• Version >= 7.0.0, < 7.5.11 is affected.
• Version >= 8.0.0, < 8.21.0 is affected.

Red Hat Cryostat 4 on RHEL 9:

• Version 4.2.0-13 and below * is unaffected.

Red Hat Enterprise Linux 10:

• Version 0:1.1.2-1.el10_2 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782840519 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782839981 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782839193 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782838753 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782839279 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782840539 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782841925 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782844225 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782839658 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782838476 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782839996 and below * is unaffected.

Red Hat Cluster Observability Operator 1.5.0:

• Version 1782839494 and below * is unaffected.

Red Hat Developer Hub 1.10:

• Version 1783448184 and below * is unaffected.

Red Hat Developer Hub 1.9:

• Version 1782761244 and below * is unaffected.

Red Hat Discovery 2:

• Version 1782166952 and below * is unaffected.

Red Hat Migration Toolkit 1.8:

• Version 1783690532 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783676191 and below * is unaffected.
• Version 1786705347 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783929816 and below * is unaffected.
• Version 1786706101 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1784094353 and below * is unaffected.
• Version 1786705558 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1784093953 and below * is unaffected.
• Version 1786705646 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1784094943 and below * is unaffected.
• Version 1786706138 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783676585 and below * is unaffected.
• Version 1786705741 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783676649 and below * is unaffected.
• Version 1786705777 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783676675 and below * is unaffected.
• Version 1786705802 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1784094299 and below * is unaffected.
• Version 1786705938 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1784094725 and below * is unaffected.
• Version 1786706577 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783676820 and below * is unaffected.
• Version 1786706125 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783676883 and below * is unaffected.
• Version 1786706177 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783676894 and below * is unaffected.
• Version 1786706188 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1784095175 and below * is unaffected.
• Version 1786706679 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783676977 and below * is unaffected.
• Version 1786706357 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1784093503 and below * is unaffected.
• Version 1786706612 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783677297 and below * is unaffected.
• Version 1786706644 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783677345 and below * is unaffected.
• Version 1786706659 and below * is unaffected.

Red Hat Openshift Data Foundation 4.18:

• Version 1783677533 and below * is unaffected.
• Version 1786706880 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684360 and below * is unaffected.
• Version 1786701839 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684068 and below * is unaffected.
• Version 1786701555 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1784054582 and below * is unaffected.
• Version 1786702052 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1784054606 and below * is unaffected.
• Version 1786702559 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1784055295 and below * is unaffected.
• Version 1786702713 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684603 and below * is unaffected.
• Version 1786702264 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684668 and below * is unaffected.
• Version 1786702448 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684667 and below * is unaffected.
• Version 1786702276 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1784054873 and below * is unaffected.
• Version 1786702440 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684707 and below * is unaffected.
• Version 1786702315 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1784055589 and below * is unaffected.
• Version 1786703071 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684779 and below * is unaffected.
• Version 1786702563 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684831 and below * is unaffected.
• Version 1786702636 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783684839 and below * is unaffected.
• Version 1786702623 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1784055533 and below * is unaffected.
• Version 1786703137 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1784055558 and below * is unaffected.
• Version 1786702716 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1784056134 and below * is unaffected.
• Version 1786702872 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783685128 and below * is unaffected.
• Version 1786702949 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783685129 and below * is unaffected.
• Version 1786702917 and below * is unaffected.

Red Hat Openshift Data Foundation 4.19:

• Version 1783685375 and below * is unaffected.
• Version 1786703143 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667125 and below * is unaffected.
• Version 1786627460 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783666755 and below * is unaffected.
• Version 1786626399 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1784054598 and below * is unaffected.
• Version 1786628235 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1784055387 and below * is unaffected.
• Version 1786627106 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1784055726 and below * is unaffected.
• Version 1786629761 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667517 and below * is unaffected.
• Version 1786627559 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667577 and below * is unaffected.
• Version 1786687918 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667611 and below * is unaffected.
• Version 1786629478 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1784055020 and below * is unaffected.
• Version 1786628142 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667641 and below * is unaffected.
• Version 1786631508 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1784055586 and below * is unaffected.
• Version 1786628053 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667790 and below * is unaffected.
• Version 1786627382 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667859 and below * is unaffected.
• Version 1786627430 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667875 and below * is unaffected.
• Version 1786629076 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667869 and below * is unaffected.
• Version 1786627469 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783667877 and below * is unaffected.
• Version 1786644072 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1784055576 and below * is unaffected.
• Version 1786688215 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1784055244 and below * is unaffected.
• Version 1786628340 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1784055382 and below * is unaffected.
• Version 1786628623 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783668266 and below * is unaffected.
• Version 1786632256 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783668288 and below * is unaffected.
• Version 1786628935 and below * is unaffected.

Red Hat Openshift Data Foundation 4.2:

• Version 1783669219 and below * is unaffected.
• Version 1786629548 and below * is unaffected.

Red Hat OpenShift Dev Spaces 3.29:

• Version 1782498475 and below * is unaffected.

Red Hat OpenShift Dev Spaces 3.29:

• Version 1782498792 and below * is unaffected.

Red Hat OpenShift Service Mesh 2.6:

• Version 1781937133 and below * is unaffected.

Red Hat OpenShift Service Mesh 2.6:

• Version 1782287580 and below * is unaffected.

Red Hat OpenShift Service Mesh 3.0:

• Version 1782201894 and below * is unaffected.

Red Hat OpenShift Service Mesh 3.0:

• Version 1782201833 and below * is unaffected.

Red Hat OpenShift Service Mesh 3.1:

• Version 1782201696 and below * is unaffected.

Red Hat OpenShift Service Mesh 3.1:

• Version 1782201537 and below * is unaffected.

Red Hat OpenShift Service Mesh 3.2:

• Version 1782201851 and below * is unaffected.

Red Hat OpenShift Service Mesh 3.2:

• Version 1782201812 and below * is unaffected.

Red Hat OpenShift Service Mesh 3.3:

• Version 1782231869 and below * is unaffected.

Red Hat OpenShift Service Mesh 3.3:

• Version 1782201466 and below * is unaffected.

Red Hat Trusted Artifact Signer 1.4:

• Version 1783327185 and below * is unaffected.

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Exploit Probability