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TI-2026-15261 Aliases CVE-2026-18618GHSA-cr6h-6g58-pq2g

Ml-metdata: bundled grpc 1.46.3 (2022) with published http/2 dos cves — directly reachable on listener

Priority MEDIUM 40CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-770.

Summary

A flaw was found in ml-metadata. The statically-linked gRPC stack in ml-metadata is outdated, making it vulnerable to known HTTP/2 denial of service (DoS) issues. An in-cluster attacker, with network access to the MLMD pod, could exploit these vulnerabilities by sending specially crafted HTTP/2 requests. This could lead to a denial of service by crashing the MLMD pod, disrupting all pipeline runs in the affected namespace.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00846 58th percentileScored 2026-11-07
Fix Fixed Red Hat: 5 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat OpenShift AI 2.25—1785260280Patch availableCNA
Red HatRed Hat OpenShift AI 3.3—1785262015Patch availableCNA
Red HatRed Hat OpenShift AI 3.4—1785269945Patch availableCNA
Red HatRed Hat OpenShift AI 3.4—1791865241Patch availableCNA
Red HatRed Hat OpenShift AI 3.5—1786552271Patch availableCNA
Red HatRed Hat OpenShift AI 3.5—1786552250Patch availableCNA
  • Red Hat OpenShift AI 2.25 VendorRed Hat Affected — Fixed in 1785260280 Patch available CNA
  • Red Hat OpenShift AI 3.3 VendorRed Hat Affected — Fixed in 1785262015 Patch available CNA
  • Red Hat OpenShift AI 3.4 VendorRed Hat Affected — Fixed in 1785269945 Patch available CNA
  • Red Hat OpenShift AI 3.4 VendorRed Hat Affected — Fixed in 1791865241 Patch available CNA
  • Red Hat OpenShift AI 3.5 VendorRed Hat Affected — Fixed in 1786552271 Patch available CNA
  • Red Hat OpenShift AI 3.5 VendorRed Hat Affected — Fixed in 1786552250 Patch available CNA

CPE names CNA · 4

CPEVersionsRoleVendor
cpe:/a:redhat:openshift_ai:2.25::el92.25—Red Hat
cpe:/a:redhat:openshift_ai:3.3::el93.3—Red Hat
cpe:/a:redhat:openshift_ai:3.4::el93.4—Red Hat
cpe:/a:redhat:openshift_ai:3.5::el93.5—Red Hat
  • cpe:/a:redhat:openshift_ai:2.25::el9 Versions 2.25 — ·Red Hat
  • cpe:/a:redhat:openshift_ai:3.3::el9 Versions 3.3 — ·Red Hat
  • cpe:/a:redhat:openshift_ai:3.4::el9 Versions 3.4 — ·Red Hat
  • cpe:/a:redhat:openshift_ai:3.5::el9 Versions 3.5 — ·Red Hat

Remediation

Red Hat 5 advisories

  • RHSA-2026:84734 Released 2026-10-19 · Red Hat rating Critical
    RHOAI 3.4.5 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-ai-gateway-payload-processing-rhel9, registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9 +47
  • RHSA-2026:60367 Released 2026-08-26 · Red Hat rating Critical
    RHOAI 3.5 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.5 registry.redhat.io/rhoai/odh-latency-predictor-prediction-rhel9, registry.redhat.io/rhoai/odh-latency-predictor-training-rhel9
  • RHSA-2026:53263 Released 2026-08-11 · Red Hat rating Critical
    RHOAI 3.3.6 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.3 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9, registry.redhat.io/rhoai/odh-data-science-pipelines-operator-controller-rhel9 +6
Show 2 more Red Hat advisories
  • RHSA-2026:53262 Released 2026-08-11 · Red Hat rating Critical
    RHOAI 3.4.3 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9, registry.redhat.io/rhoai/odh-data-science-pipelines-operator-controller-rhel9 +8
  • RHSA-2026:53261 Released 2026-08-11 · Red Hat rating Critical
    RHOAI 2.25.10 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9, registry.redhat.io/rhoai/odh-data-science-pipelines-operator-controller-rhel9 +6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Red Hat OpenShift AI 2.25, Red Hat OpenShift AI 3.3 and 2 more products — RHSA-2026:60367

    9 records Highest priority Priority MEDIUM 6 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-15489 Improper access control in Red Hat OpenShift AI 3.3Priority MEDIUM 42
    • TI-2026-15512 Odh-training-operator-rhel9: rhoai fork aggregates training job create onto native edit/admin clusterrolesPriority MEDIUM 41
    • TI-2026-15260 Mass assignment in Red Hat OpenShift AI 2.25Priority MEDIUM 41
    Show all 9 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift AI 2.25Fixed RHSA-2026:53261
Red Hat OpenShift AI 3.3Fixed RHSA-2026:53263
Red Hat OpenShift AI 3.4Fixed RHSA-2026:53262, RHSA-2026:84734
Red Hat OpenShift AI 3.5Fixed RHSA-2026:60367
Not affected: 3 products
  • Red Hat OpenShift AI 2.25
  • Red Hat OpenShift AI 3.3
  • Red Hat OpenShift AI 3.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18618
  2. 2026-10-03 Alias added: GHSA-cr6h-6g58-pq2g
  3. 2026-10-19 Fix available: rhoai/odh-mlmd-grpc-server-rhel9@1791865241 · CNA
  4. 2026-10-19 1 new reference · CNA
  5. 2026-10-20 Fix available: RHSA-2026:84734 · Red Hat
  6. 2026-10-20 Affected versions changed · Red Hat

References

Advisory 5

Other 2

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences