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01 Record

CVE-2026-42876

External Secrets Operator: Privilege escalation with secret overwriting

MediumPUBLISHEDCNA: GitHub_M
CNA base score4.9 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

02 Description

External Secrets Operator: Privilege escalation with secret overwriting

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
0.21% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 11.7% of scored records. A rank, not a probability.
NVD base score
4.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. 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
2026-05-11 18:58Z5 MO AGO
Last updated
2026-10-06 15:30Z22 DAYS AGO
Reserved
2026-04-30
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 4.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
Weaknesses
  • CWE-285Improper AuthorizationClass
  • CWE-266Incorrect Privilege AssignmentBase
Data version
5.2
Document digest
8480e0095284354aac0fd0583bd803b4099cb2a44f34095b68e2094876de1c0a

05 Affected products

VendorProductVersionsPlatforms
external-secretsexternal-secrets< 2.4.1—

06 References