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Fencer Vulns
high 8.8

CVE-2025-2843 json

Observability-operator: observability operator privilege escalation

published 2025-11-12 11 mo ago modified 2026-10-18 21 d ago also GHSA-mj6p-p843-x5wc , GO-2025-4125 , EUVD-2025-131920

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

A flaw was found in the Observability Operator. The Operator creates a ServiceAccount with *ClusterRole* upon deployment of the *Namespace-Scoped* Custom Resource MonitorStack. This issue allows an adversarial Kubernetes Account with only namespaced-level roles, for example, a tenant controlling a namespace, to create a MonitorStack in the authorized namespace and then elevate permission to the cluster level by impersonating the ServiceAccount created by the Operator, resulting in privilege escalation and other issues.

Patch / fix

  • go github.com/rhobs/observability-operator 1.3.0
  • rhobs observability-operator 1.3.0
  • Red Hat Cluster Observability Operator 1.3.1 1.3.0-1762825457
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-2843 updated cvss 8.8

observability-operator: Observability Operator privilege escalation

  • Red Hat Cluster Observability Operator 1.3.1 cluster-observability-operator 1.3.0-1762825457
    fixed: vendor fix “Currently, no mitigation is available for this vulnerability.” RHSA-2025:21146
  • Red Hat Cluster Observability Operator 1.3.1 cluster-observability-operator 1.3.0-1762808129, cluster-observability-operator 1.3.0-1762808154, cluster-observability-operator 1.3.0-1762808183, cluster-observability-operator 1.3.0-1762808238, cluster-observability-operator 1.3.0-1762808264, cluster-observability-operator 1.3.0-1762808269, +13 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
11 mo ago

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/rhobs/observability-operator
<1.3.0
1.3.0

Affected products

  • rhobs observability-operator
  • Red Hat Cluster Observability Operator 1.3.1

Classification

Weakness
  • CWE-266 Incorrect Privilege Assignment

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.