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Fencer Vulns
critical 9.8

CVE-2026-82277 json

Argo Rollouts Dashboard Unauthenticated Mutating Operations

published 2026-08-28 2 mo ago modified 2026-09-24 45 d ago also EUVD-2026-67808

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

Argo Rollouts dashboard through 1.10.0 binds to all interfaces and exposes mutating Rollout operations without authentication, authorization, or CSRF protection. Attackers on the same network can invoke PromoteRollout, AbortRollout, RestartRollout, SetRolloutImage, UndoRollout, and RetryRollout operations across all namespaces accessible to the operator's kubeconfig.

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-2026-82277 updated cvss 9.8

argo-rollouts: argo-rollouts: Argo Rollouts Dashboard Unauthenticated Mutating Operations

  • Red Hat OpenShift GitOps openshift-gitops-1/argo-rollouts-rhel8, openshift-gitops-1/argo-rollouts-rhel9, openshift-gitops-1/gitops-rhel8-operator
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift GitOps 1.22 kubectl-argo-rollouts-cli-1-22 1.22.2
    fixed: vendor fix RHSA-2026:83629
  • Red Hat OpenShift GitOps openshift-gitops-1/gitops-rhel9-operator
    not affected: component not present
  • Red Hat OpenShift GitOps 1.22 argocd-cli-1-22 1.22.2, argocd-agentctl-1-22 1.22.2, gitops-promoter-cli-1-22 1.22.2, kubectl-argo-rollouts-cli-1-22 1.22.2
    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
yes
Technical impact
total
Assessed
2 mo ago

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 4.0 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • argoproj argo-rollouts

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality

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.