CVE-2026-85612Public exploitNetwork attack vectorHinoki check available

Unauthenticated internal data disclosure via unfiltered image fetches

Published Sep 4, 2026 · Updated Sep 4, 2026

Server-side request forgery in OpenPanel before 2.3.0 allows remote attackers to read internal HTTP responses through image proxy endpoints. The validateUrl function accepts any HTTP or HTTPS destination without rejecting private, loopback, link-local, or reserved addresses, and fetchImage follows redirects and returns small response bodies unchanged. No authentication is required; exposed API instances permit internal service enumeration and disclosure of cloud metadata credentials.

CVSS severity8.7
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Server-side request forgery in OpenPanel before 2.3.0 allows remote attackers to read internal HTTP responses through image proxy endpoints. The validateUrl function accepts any HTTP or HTTPS destination without rejecting private, loopback, link-local, or reserved addresses, and fetchImage follows redirects and returns small response bodies unchanged. No authentication is required; exposed API instances permit internal service enumeration and disclosure of cloud metadata credentials.

The record

CVE
CVE-2026-85612
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
OpenPanel
Product
OpenPanel
Classifications
CWE-918, T1190, T1552.005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 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 <2.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenPanel · OpenPanelversion=0 <2.3.0

Published CVSS scores

8.7VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application
T1552.005Cloud Instance Metadata API

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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