Managedcluster-import-controller: csr auto-approver does not validate certificate subject or signername (spoke→hub cluster-admin)
Red Hat · multicluster engine for Kubernetes 2.1
9.9CriticalCVSS 3.1
Recommended action
Within 7 days
Critical technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available
Direct vendor intelligence
Authoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
1 current
CVE-2026-66795 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitymanagedcluster-import-controller: CSR auto-approver does not validate certificate Subject or signerName (spoke→hub cluster-admin)
24 fixed
The vendor explicitly identifies these products or versions as containing the fix.
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:4d2a01c91b22d46fa04321bb056e3fcce4070b886e66fa409b2c7d3df7224d80_arm64 as a component of multicluster engine for Kubernetes 2.11
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:715b193ac6f708537e5b78a79cb5f5ea74fddfbd3c860cd394b1aa330ac532c9_s390x as a component of multicluster engine for Kubernetes 2.11
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:88dc93eb8fe4000fd2f0fb3b53c08c72a0866669e1e99df318583c0f2b21a0d8_ppc64le as a component of multicluster engine for Kubernetes 2.11
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:933847cd4535f927f8b558d8042a0b47c8f52554397df98c450c168f53e2bac7_amd64 as a component of multicluster engine for Kubernetes 2.11
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2b73bce7c4009be5ff28cf34894829012f5d0af5c5f1110f476f587bf4cfbc88_arm64 as a component of multicluster engine for Kubernetes 2.17
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2e203aa904981d077513c55529610388c4a6e6d48f8491d61f45565cfb797336_amd64 as a component of multicluster engine for Kubernetes 2.17
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:5810917f651b0a84933eb0854b1453fcf649914ebfcd9be7694450624139733e_s390x as a component of multicluster engine for Kubernetes 2.17
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:6cdf568c57991e4f3865416e5e8b36b1759f31b9b18ed7b59357c8ef4a416ae8_ppc64le as a component of multicluster engine for Kubernetes 2.17
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:43c08b788b7685a00b7a3c2b42b9d84e321ae1a007eb283a67d89c64332728ad_arm64 as a component of multicluster engine for Kubernetes 2.1
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:854b5ffea55e0fba6c4670a3c7b4a5294109cdad00f4eec01c7324748abec404_s390x as a component of multicluster engine for Kubernetes 2.1
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:bdf8bd3b7f1961eba158060680908bfc0bf77cba9773a47ce1f39a89be41a43b_amd64 as a component of multicluster engine for Kubernetes 2.1
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:dceaebb7604ee432f44939632f88d72d52abb3f2bfc4e175c8adcfdb5aca928d_ppc64le as a component of multicluster engine for Kubernetes 2.1
Summary
A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster.
Remediation
For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/clusters/cluster_mce_overview#mce-install-intro
Optional official sources
National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.
Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.
Official European source
ENISA European Vulnerability Database
Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.
1 current
ENISA EUVD identifier
EUVD-2026-60452
No EUVD known-exploited evidence
A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster.
EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
9.9 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days
Critical technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available
01
What, why and how
A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster.
What
A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster.
Why
The product does not validate, or incorrectly validates, a certificate.
How
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.
What
A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster.
Why
The product does not validate, or incorrectly validates, a certificate.
How
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No confirmed evidence
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.None recorded
No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
Likely attack path
a network path → Improper Certificate Validation → gain additional privileges
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness ?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-295: Improper Certificate Validation. The product does not validate, or incorrectly validates, a certificate.
CVSS vector ?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
Stolen credentials, tokens and legitimate administration functions may provide continued access without deploying a large custom toolset.
NetworkPrivilege escalationCWE-295
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-60452Official EUVD mapping
A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster.
Operational remediation based on structured source evidence.
Status ?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
See the vendor and CVE records for the affected range.
Fixed
registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:4d2a01c91b22d46fa04321bb056e3fcce4070b886e66fa409b2c7d3df7224d80_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:715b193ac6f708537e5b78a79cb5f5ea74fddfbd3c860cd394b1aa330ac532c9_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:88dc93eb8fe4000fd2f0fb3b53c08c72a0866669e1e99df318583c0f2b21a0d8_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:933847cd4535f927f8b558d8042a0b47c8f52554397df98c450c168f53e2bac7_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2b73bce7c4009be5ff28cf34894829012f5d0af5c5f1110f476f587bf4cfbc88_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2e203aa904981d077513c55529610388c4a6e6d48f8491d61f45565cfb797336_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:5810917f651b0a84933eb0854b1453fcf649914ebfcd9be7694450624139733e_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:6cdf568c57991e4f3865416e5e8b36b1759f31b9b18ed7b59357c8ef4a416ae8_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:43c08b788b7685a00b7a3c2b42b9d84e321ae1a007eb283a67d89c64332728ad_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:854b5ffea55e0fba6c4670a3c7b4a5294109cdad00f4eec01c7324748abec404_s390x as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:bdf8bd3b7f1961eba158060680908bfc0bf77cba9773a47ce1f39a89be41a43b_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:dceaebb7604ee432f44939632f88d72d52abb3f2bfc4e175c8adcfdb5aca928d_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:29e04afe7aac8125d4df3a5f0e8ed46ff82aa7a1868f93a4d280d0c99bb8b3e1_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:3fb2dfc006837bcd02828bee63e55c2a378cda0b02cff1d1e38d1d010e6b4d0d_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:49ea2f9e82faba8702261c198e37c4f8a1c73821cad0f010cc254e170738bc6a_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:59a0e73392e0add38c4ffb88defd16f237c2cf20f2d6794e095ee861202b67d2_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:1e9b58710695b555f18145f0dfa6e1e93b81c3ba8dcf8b9fd9ca590a32699fba_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:59e9c3c1963af1e37a001b421dbfdc35f3d2bc8b4de14f8388317060e256fb9a_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:f5a1d8513b8e761aa33540d19e77218f95be7f08de6dd5713990b97dac0ba29e_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:fe7121a0949f5ac8d69f48adc4c4237648e962488c2f754b6a0c6ba6b79adaff_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:7b48957b2309951c65393a7a2fc213259542017b3373c340467e88900ccce0c7_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:c212918c6281fa497fb034eb8ba4dca5d094acba9a599a6b5f6965c6d32f92bd_arm64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:cb8882ffd909709756af679d18cefc269cf8d0293b21450ca127a3d13cab2e3c_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:cf82b3dcda0aec785fc7213aadab81715366fccd4386d71d881bdc18987e69e6_amd64 as a component of multicluster engine for Kubernetes 2.9
Action
For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/clusters/cluster_mce_overview#mce-install-intro
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04
Evidence and provenance
Published 17 Aug 2026 · Last source change 8 Sept 2026, 12:15 UTC · CWE-295 · Improper Certificate Validation
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source ?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.FIRST · tracked since 2026-08-23
European sourceENISA EUVD · EUVD-2026-60452
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment
Missing structured fields: affected versions. Missing data is not evidence of low risk; review the primary advisory.
Affected versionsThe structured affected or fixed version information changed.
Before
Fixed: registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:43c08b788b7685a00b7a3c2b42b9d84e321ae1a007eb283a67d89c64332728ad_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:854b5ffea55e0fba6c4670a3c7b4a5294109cdad00f4eec01c7324748abec404_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:bdf8bd3b7f1961eba158060680908bfc0bf77cba9773a47ce1f39a89be41a43b_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:dceaebb7604ee432f44939632f88d72d52abb3f2bfc4e175c8adcfdb5aca928d_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:4d2a01c91b22d46fa04321bb056e3fcce4070b886e66fa409b2c7d3df7224d80_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:715b193ac6f708537e5b78a79cb5f5ea74fddfbd3c860cd394b1aa330ac532c9_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:88dc93eb8fe4000fd2f0fb3b53c08c72a0866669e1e99df318583c0f2b21a0d8_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:933847cd4535f927f8b558d8042a0b47c8f52554397df98c450c168f53e2bac7_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2b73bce7c4009be5ff28cf34894829012f5d0af5c5f1110f476f587bf4cfbc88_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2e203aa904981d077513c55529610388c4a6e6d48f8491d61f45565cfb797336_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:5810917f651b0a84933eb0854b1453fcf649914ebfcd9be7694450624139733e_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:6cdf568c57991e4f3865416e5e8b36b1759f31b9b18ed7b59357c8ef4a416ae8_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:29e04afe7aac8125d4df3a5f0e8ed46ff82aa7a1868f93a4d280d0c99bb8b3e1_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:3fb2dfc006837bcd02828bee63e55c2a378cda0b02cff1d1e38d1d010e6b4d0d_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:49ea2f9e82faba8702261c198e37c4f8a1c73821cad0f010cc254e170738bc6a_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:59a0e73392e0add38c4ffb88defd16f237c2cf20f2d6794e095ee861202b67d2_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:1e9b58710695b555f18145f0dfa6e1e93b81c3ba8dcf8b9fd9ca590a32699fba_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:59e9c3c1963af1e37a001b421dbfdc35f3d2bc8b4de14f8388317060e256fb9a_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:f5a1d8513b8e761aa33540d19e77218f95be7f08de6dd5713990b97dac0ba29e_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:fe7121a0949f5ac8d69f48adc4c4237648e962488c2f754b6a0c6ba6b79adaff_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:7b48957b2309951c65393a7a2fc213259542017b3373c340467e88900ccce0c7_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:c212918c6281fa497fb034eb8ba4dca5d094acba9a599a6b5f6965c6d32f92bd_arm64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:cb8882ffd909709756af679d18cefc269cf8d0293b21450ca127a3d13cab2e3c_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:cf82b3dcda0aec785fc7213aadab81715366fccd4386d71d881bdc18987e69e6_amd64 as a component of multicluster engine for Kubernetes 2.9
After
Fixed: registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:4d2a01c91b22d46fa04321bb056e3fcce4070b886e66fa409b2c7d3df7224d80_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:715b193ac6f708537e5b78a79cb5f5ea74fddfbd3c860cd394b1aa330ac532c9_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:88dc93eb8fe4000fd2f0fb3b53c08c72a0866669e1e99df318583c0f2b21a0d8_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:933847cd4535f927f8b558d8042a0b47c8f52554397df98c450c168f53e2bac7_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2b73bce7c4009be5ff28cf34894829012f5d0af5c5f1110f476f587bf4cfbc88_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2e203aa904981d077513c55529610388c4a6e6d48f8491d61f45565cfb797336_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:5810917f651b0a84933eb0854b1453fcf649914ebfcd9be7694450624139733e_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:6cdf568c57991e4f3865416e5e8b36b1759f31b9b18ed7b59357c8ef4a416ae8_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:43c08b788b7685a00b7a3c2b42b9d84e321ae1a007eb283a67d89c64332728ad_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:854b5ffea55e0fba6c4670a3c7b4a5294109cdad00f4eec01c7324748abec404_s390x as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:bdf8bd3b7f1961eba158060680908bfc0bf77cba9773a47ce1f39a89be41a43b_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:dceaebb7604ee432f44939632f88d72d52abb3f2bfc4e175c8adcfdb5aca928d_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:29e04afe7aac8125d4df3a5f0e8ed46ff82aa7a1868f93a4d280d0c99bb8b3e1_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:3fb2dfc006837bcd02828bee63e55c2a378cda0b02cff1d1e38d1d010e6b4d0d_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:49ea2f9e82faba8702261c198e37c4f8a1c73821cad0f010cc254e170738bc6a_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:59a0e73392e0add38c4ffb88defd16f237c2cf20f2d6794e095ee861202b67d2_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:1e9b58710695b555f18145f0dfa6e1e93b81c3ba8dcf8b9fd9ca590a32699fba_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:59e9c3c1963af1e37a001b421dbfdc35f3d2bc8b4de14f8388317060e256fb9a_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:f5a1d8513b8e761aa33540d19e77218f95be7f08de6dd5713990b97dac0ba29e_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:fe7121a0949f5ac8d69f48adc4c4237648e962488c2f754b6a0c6ba6b79adaff_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:7b48957b2309951c65393a7a2fc213259542017b3373c340467e88900ccce0c7_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:c212918c6281fa497fb034eb8ba4dca5d094acba9a599a6b5f6965c6d32f92bd_arm64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:cb8882ffd909709756af679d18cefc269cf8d0293b21450ca127a3d13cab2e3c_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:cf82b3dcda0aec785fc7213aadab81715366fccd4386d71d881bdc18987e69e6_amd64 as a component of multicluster engine for Kubernetes 2.9
Affected versionsThe structured affected or fixed version information changed.
Before
multicluster-engine/managedcluster-import-controller-rhel9 as a component of Multicluster Engine for Kubernetes
After
Fixed: registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:43c08b788b7685a00b7a3c2b42b9d84e321ae1a007eb283a67d89c64332728ad_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:854b5ffea55e0fba6c4670a3c7b4a5294109cdad00f4eec01c7324748abec404_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:bdf8bd3b7f1961eba158060680908bfc0bf77cba9773a47ce1f39a89be41a43b_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:dceaebb7604ee432f44939632f88d72d52abb3f2bfc4e175c8adcfdb5aca928d_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:4d2a01c91b22d46fa04321bb056e3fcce4070b886e66fa409b2c7d3df7224d80_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:715b193ac6f708537e5b78a79cb5f5ea74fddfbd3c860cd394b1aa330ac532c9_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:88dc93eb8fe4000fd2f0fb3b53c08c72a0866669e1e99df318583c0f2b21a0d8_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:933847cd4535f927f8b558d8042a0b47c8f52554397df98c450c168f53e2bac7_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2b73bce7c4009be5ff28cf34894829012f5d0af5c5f1110f476f587bf4cfbc88_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:2e203aa904981d077513c55529610388c4a6e6d48f8491d61f45565cfb797336_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:5810917f651b0a84933eb0854b1453fcf649914ebfcd9be7694450624139733e_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:6cdf568c57991e4f3865416e5e8b36b1759f31b9b18ed7b59357c8ef4a416ae8_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:29e04afe7aac8125d4df3a5f0e8ed46ff82aa7a1868f93a4d280d0c99bb8b3e1_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:3fb2dfc006837bcd02828bee63e55c2a378cda0b02cff1d1e38d1d010e6b4d0d_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:49ea2f9e82faba8702261c198e37c4f8a1c73821cad0f010cc254e170738bc6a_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:59a0e73392e0add38c4ffb88defd16f237c2cf20f2d6794e095ee861202b67d2_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:1e9b58710695b555f18145f0dfa6e1e93b81c3ba8dcf8b9fd9ca590a32699fba_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:59e9c3c1963af1e37a001b421dbfdc35f3d2bc8b4de14f8388317060e256fb9a_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:f5a1d8513b8e761aa33540d19e77218f95be7f08de6dd5713990b97dac0ba29e_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:fe7121a0949f5ac8d69f48adc4c4237648e962488c2f754b6a0c6ba6b79adaff_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:7b48957b2309951c65393a7a2fc213259542017b3373c340467e88900ccce0c7_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:c212918c6281fa497fb034eb8ba4dca5d094acba9a599a6b5f6965c6d32f92bd_arm64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:cb8882ffd909709756af679d18cefc269cf8d0293b21450ca127a3d13cab2e3c_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/managedcluster-import-controller-rhel9@sha256:cf82b3dcda0aec785fc7213aadab81715366fccd4386d71d881bdc18987e69e6_amd64 as a component of multicluster engine for Kubernetes 2.9
Affected versionsThe structured affected or fixed version information changed.
Before
See the vendor and CVE records for the affected range. · Fixed: 1787078330 < *; 1786577915 < *
After
See the vendor and CVE records for the affected range. · Fixed: 1787078272 < *; 1787078330 < *; 1786577915 < *; 1787260779 < *; 1787259044 < *; 1787078307 < *
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
CVE-2026-66795: Managedcluster-import-controller: csr auto-approver does not validate certificate subject or signername (spoke→hub cluster-admin) | BlackTree
