VulnSocial

CVE-2026-66795General

LOWCVSS 9.9 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-295

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-18: 1Technical Details · 2026-08-18: 108-18
Signal classification1 categories
General
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • MalwareObserver@MalwareObserver
    General

    🐛 VULNERABILITIES (CVSS 9.1) CVE-2026-66795: — severity important — Red Hat Security Data (JSON) https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-66795.json #Vulnerability #CVE #ZeroDay

    Post summary

    CVE-2026-66795 is announced with a high CVSS 9.1 score, but the post contains no PoC, exploit, active use, or patch information.

    0000033
    28 followersView on X

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