Read the docs
TI-2026-82676 Aliases CVE-2026-119115

Incorrect authorization in AWS Private CA Connector for Kubernetes

Priority LOW 36CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

AWS Private CA Connector for Kubernetes (aws-privateca-issuer) versions before v1.10.1 and the EKS add-on before v1.10.1-eksbuild.1 are affected. Incorrect authorization (CWE-863) in the issuer resolution logic lets an authenticated remote user obtain certificates, including subordinate CA certificates, signed by a cluster-scoped AWS Private CA issuer that their approval policy does not authorize.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Incorrect authorization in the issuer resolution logic in AWS Private CA Connector for Kubernetes (aws-privateca-issuer) before v1.10.1 might allow an authenticated remote user to obtain certificates, including subordinate CA certificates, signed by a cluster-scoped AWS Private CA issuer that their approval policy does not authorize. To remediate this issue, users should upgrade aws-privateca-issuer to version v1.10.1 or the AWS Private CA Connector for Kubernetes EKS add-on to version v1.10.1-eksbuild.1, and update any certificate requests, Certificate resources, or Ingress annotations whose issuerRef.kind is missing, incorrect, or does not match the referenced issuer, since v1.10.1 requires issuerRef.kind to be exactly AWSPCAIssuer or AWSPCAClusterIssuer and to match the issuer it references.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0017 6th percentileScored 2026-11-07
Fix Fixed aws-privateca-issuer (AWS): 1.10.1, 1.10.1-eksbuild.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AWSaws-privateca-issuerbefore 1.10.11.10.1Patch availableCNA
AWSaws-privateca-issuerbefore 1.10.1-eksbuild.11.10.1-eksbuild.1Patch availableCNA
  • aws-privateca-issuer VendorAWS Affected before 1.10.1 Fixed in 1.10.1 Patch available CNA
  • aws-privateca-issuer VendorAWS Affected before 1.10.1-eksbuild.1 Fixed in 1.10.1-eksbuild.1 Patch available CNA

Remediation

Upgrade aws-privateca-issuer to v1.10.1, or the AWS Private CA Connector for Kubernetes EKS add-on to v1.10.1-eksbuild.1. Update certificate requests, Certificate resources and Ingress annotations so that issuerRef.kind is exactly AWSPCAIssuer or AWSPCAClusterIssuer and matches the issuer it references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA aws-privateca-issuer (AWS) Fixed in 1.10.1
  • Fix · CNA aws-privateca-issuer (AWS) Fixed in 1.10.1-eksbuild.1

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-119115
  2. 2026-10-31 Priority changed: MEDIUM → LOW
  3. 2026-11-05 CISA SSVC decision points changed

References

Patch 1

Advisory 2

  • TI-2026-23989 crypto: algif_aead - Revert to operating out-of-place KEVCVSS 3.1HIGH 7.8
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2024-18648 Amazon AWS Amplify CLI before 12.10.1 incorrectly configures the role trust policy of IAM… CVSS 3.1CRITICAL 9.8
  • TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
  • TI-2025-03847 Input validation issue in AWS Amplify Studio UI component properties CVSS 4.0CRITICAL 9.0
  • TI-2026-11603 HTTP/2 Stream Parser Confusion Body-Inspection Bypass in Amazon CloudFront with AWS WAF CVSS 4.0HIGH 7.9
See all 383 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences