CVE-2026-63647Public exploitNetwork attack vectorHinoki check available

Notification stream hijacking via anonymous SSE endpoints

Published Sep 18, 2026 · Updated Sep 18, 2026

Authorization bypass in KubeOperator Cordys CRM before 1.7.2 allows remote attackers to read, inject, or interrupt user notification streams. SseController accepts a caller-controlled userId on three routes that ShiroFilter registers as anonymous instead of deriving identity from an authenticated principal. No account or user interaction is required; reachable deployments expose workflow events and permit forged heartbeat messages or forced channel closure.

CVSS severity9.3
Critical
EPSS probability0.50%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in KubeOperator Cordys CRM before 1.7.2 allows remote attackers to read, inject, or interrupt user notification streams. SseController accepts a caller-controlled userId on three routes that ShiroFilter registers as anonymous instead of deriving identity from an authenticated principal. No account or user interaction is required; reachable deployments expose workflow events and permit forged heartbeat messages or forced channel closure.

The record

CVE
CVE-2026-63647
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
KubeOperator
Product
Cordys CRM
Classifications
CWE-306, CWE-639, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

KubeOperator · Cordys CRMversion=< 1.7.2

Published CVSS scores

9.3GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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