High severity · published Aug 10, 2026
CVE-2026-18618
Ml-metdata: bundled grpc 1.46.3 (2022) with published http/2 dos cves — directly reachable on listener
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
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 The statically-linked gRPC stack in ml-metadata is outdated, making it vulnerable to known HTTP/2 denial of service (DoS) issues.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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat OpenShift AI 2.25 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift AI 3.3 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift AI 3.4 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift AI 3.5 · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18618
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18618
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:53261
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:53262
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:53263
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60367
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:84734
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-18618
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