CVE-2026-73432Network attack vectorHinoki check available

Admin-gated internal-service access via unvalidated synchronization redirects

Published Aug 12, 2026 · Updated Aug 12, 2026

SSRF in Vulnerability-Lookup 5.5.1 and earlier allows remote authenticated users to access internal services through remote-instance sync. The synchronization worker passes each stored address to requests.get() with automatic redirects and no destination network-boundary validation. Administrator access with admin:access is required; requests originate from the server and can reach private services or cloud metadata endpoints.

CVSS severity5.1
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

SSRF in Vulnerability-Lookup 5.5.1 and earlier allows remote authenticated users to access internal services through remote-instance sync. The synchronization worker passes each stored address to requests.get() with automatic redirects and no destination network-boundary validation. Administrator access with admin:access is required; requests originate from the server and can reach private services or cloud metadata endpoints.

The record

CVE
CVE-2026-73432
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
Computer Incident Response Center Luxembourg (CIRCL)
Product
Vulnerability-Lookup
Classifications
CWE-918, T1090
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 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=0 <=5.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Computer Incident Response Center Luxembourg (CIRCL) · Vulnerability-Lookupversion=0 <=5.5.1

Published CVSS scores

5.1CIRCLCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1090Proxy

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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