CVE-2026-70398: CWE-441
Source GCVE Database
Not known to be exploited · CVSS 9.6 Critical : patch Red Hat Advanced Cluster Management for Kubernetes 2.11 as a priority.
Data as of 11 Nov 2026, 23:24 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.
What to do
Patches and advisories
- access.redhat.com/errata/RHSA-2026:60386 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60387 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60388 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60389 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60390 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60391 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat Advanced Cluster Management for Kubernetes 2.11 | Affected– | Fixed in– |
| Red HatRed Hat Advanced Cluster Management for Kubernetes 2.13 | Affected– | Fixed in– |
| Red HatRed Hat Advanced Cluster Management for Kubernetes 2.14 | Affected– | Fixed in– |
| Red HatRed Hat Advanced Cluster Management for Kubernetes 2.15 | Affected– | Fixed in– |
| Red HatRed Hat Advanced Cluster Management for Kubernetes 2.16 | Affected– | Fixed in– |
| Red HatRed Hat Advanced Cluster Management for Kubernetes 2.17 | Affected– | Fixed in– |
AI-suggested
Red Hat has released an official security update in Red Hat Advanced Cluster Management for Kubernetes version 2.17.1 that addresses this vulnerability. Users should apply this update as soon as possible. Prior to applying this update, ensure all previously released relevant errata are applied. Refer to the Red Hat advisory RHSA-2026:60386 and the official update instructions at https://access.redhat.com/articles/11258 for detailed remediation steps.
Description
A vulnerability in the multicloud-integrations component of Red Hat Advanced Cluster Management (RHACM) allows an authenticated tenant user to manipulate the GitOpsCluster controller. This manipulation enables the tenant to redirect sensitive spoke cluster bearer tokens to a namespace they control, potentially disclosing critical information and bypassing security policies within ArgoCD AppProjects. The flaw has a high severity with a CVSS score of 9.6.
References
- nvd.nist.gov/vuln/detail/CVE-2026-70398 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60386 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60387 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60388 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60389 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60390 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60391 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-70398 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2514228 (opens in a new tab)