CVE-2026-24736Public exploitNetwork attack vectorHinoki check available

Internal data disclosure via unrestricted webhook destinations

Published Jan 27, 2026 · Updated Jan 27, 2026

SSRF in the webhook Rules engine in Squidex 7.21.0 and earlier allows remote authenticated users to read internal HTTP responses. The webhook URL accepts loopback, private-network, and metadata-service destinations, and Squidex records returned headers and bodies in the API-readable lastDump field. An authenticated user able to create and trigger a rule can cross network boundaries and retrieve data exposed by reachable internal HTTP services.

CVSS severity9.1
Critical
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

SSRF in the webhook Rules engine in Squidex 7.21.0 and earlier allows remote authenticated users to read internal HTTP responses. The webhook URL accepts loopback, private-network, and metadata-service destinations, and Squidex records returned headers and bodies in the API-readable lastDump field. An authenticated user able to create and trigger a rule can cross network boundaries and retrieve data exposed by reachable internal HTTP services.

The record

CVE
CVE-2026-24736
Published
Jan 27, 2026
Updated
Jan 27, 2026
Vendor
Squidex
Product
Squidex
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 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=<= 7.21.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Squidex · Squidexversion=<= 7.21.0

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
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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