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Advisory severityHigh7.5Vendor: MediumRed Hat Linux

High [CVE-2026-48712] Denial of Service via uncontrolled recursion with crafted protobuf payload

This high-severity Red Hat Linux advisory covers CVE-2026-48712 affecting Red Hat Developer Hub 1.9, Red Hat OpenShift AI 3.4, Red Hat Enterprise Linux AI (RHEL AI) 3.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-48712 Source published Source updated

VulniPulse record published Record updated

CVE-2026-48712
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

Summary

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.6.1 and 8.4.1, protobufjs could recurse without a depth limit while converting decoded messages to plain objects or JSON.

This affected generated toObject() conversion and the custom google.protobuf. Any JSON conversion path.

This vulnerability is fixed in 7.6.1 and 8.4.1. A flaw was found in protobufjs.

This uncontrolled recursion could exhaust the JavaScript call stack during conversion to JSON, leading to a Denial of Service (DoS). Red Hat rates this issue as having Low impact for Red Hat Enterprise Linux AI bootc images.

Although protobufjs is present as a transitive dependency, the vulnerable parsing path is not exercised in normal product operation. Red Hat severity: Moderate — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Weakness: CWE-606. Affected Red Hat products: Red Hat Developer Hub 1.9; Red Hat OpenShift AI 3.4; Red Hat Enterprise Linux AI (RHEL AI) 3.

Red Hat lists Cryostat 4; OpenShift Pipelines; OpenShift Service Mesh 3; Red Hat Ansible Automation Platform 2; Red Hat Build of Podman Desktop; Red Hat Ceph Storage 9; Red Hat Enterprise Linux 8; Red Hat Hardened Images; Red Hat OpenShift Container Platform 4; Red Hat Openshift Data Foundation 4; Self-service automation portal 2 as not affected.

Is CVE-2026-48712 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-48712 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-48712?

Upgrade to a fixed release named by Red Hat:

  • 7.6.1
  • 8.4.1
  • rhdh/rhdh-hub-rhel9:1785972843
  • rhoai/odh-dashboard-rhel9:1787347991
  • rhoai/odh-mod-arch-automl-rhel9:1787250508
  • rhoai/odh-mod-arch-autorag-rhel9:1787251550
  • rhoai/odh-mod-arch-gen-ai-rhel9:1786611759
  • rhoai/odh-mod-arch-maas-rhel9:1787251250
  • rhoai/odh-mod-arch-mlflow-rhel9:1786612219
  • rhoai/odh-mod-arch-model-registry-rhel9:1787250617
  • rhoai/odh-mod-arch-eval-hub-rhel9:1791861214
  • RHSA-2026:52768

2 more fixed releases are listed below.

Confirm against the vendor advisory before you patch.

Affected versions
  • < 7.6.1
  • < 8.4.1

Official advisory · high-confidence parse· fetched 14 days ago·verify at source

Fixed versions
  • 7.6.1
  • 8.4.1
  • rhdh/rhdh-hub-rhel9:1785972843
  • rhoai/odh-dashboard-rhel9:1787347991
  • rhoai/odh-mod-arch-automl-rhel9:1787250508
  • rhoai/odh-mod-arch-autorag-rhel9:1787251550
  • rhoai/odh-mod-arch-gen-ai-rhel9:1786611759
  • rhoai/odh-mod-arch-maas-rhel9:1787251250
  • rhoai/odh-mod-arch-mlflow-rhel9:1786612219
  • rhoai/odh-mod-arch-model-registry-rhel9:1787250617
  • rhoai/odh-mod-arch-eval-hub-rhel9:1791861214
  • RHSA-2026:52768
  • RHSA-2026:60520
  • RHSA-2026:84734

Official advisory · high-confidence parse· fetched 14 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • No specific mitigation required for unaffected runtime paths.

Official advisory · high-confidence parse· fetched 14 days ago·verify at source

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