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01 Record

CVE-2026-6388

Argocd-image-updater: argocd image updater: cross-namespace privilege escalation via insufficient namespace validation

CriticalPUBLISHEDCNA: redhat
CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
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02 Description

Argocd-image-updater: argocd image updater: cross-namespace privilege escalation via insufficient namespace validation

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 29.1% of scored records. A rank, not a probability.
NVD base score
9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-26.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-15 21:34Z6 MO AGO
Last updated
2026-07-15 00:41Z3 MO AGO
Reserved
2026-04-15
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Critical (CVSS 9.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
Weaknesses
  • CWE-1220Insufficient Granularity of Access ControlBase
Data version
5.2
Document digest
92e032c54fe87ee652cd3f403e38b80581e167c3acfbecf650a5faa194ea1c19

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat OpenShift GitOpsNot specified—

06 References