CVE-2024-41664Network attack vector

Internal port discovery via unchecked webhook test URL

Published Jul 23, 2024 · Updated Aug 2, 2024

Blind SSRF in Thinkst Applied Research Canarytokens before sha-8ea5315 allows remote authenticated users to probe internal ports via webhook tests. The Webhook alert feature sends an HTTP test request to a creator-supplied URL without validating that its destination is safe. Creating a token with webhook alerts is required; response bodies remain hidden, but request errors disclose enough reachability information to map open ports inside the service network.

CVSS severity5.4
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind SSRF in Thinkst Applied Research Canarytokens before sha-8ea5315 allows remote authenticated users to probe internal ports via webhook tests. The Webhook alert feature sends an HTTP test request to a creator-supplied URL without validating that its destination is safe. Creating a token with webhook alerts is required; response bodies remain hidden, but request errors disclose enough reachability information to map open ports inside the service network.

The record

CVE
CVE-2024-41664
Published
Jul 23, 2024
Updated
Aug 2, 2024
Vendor
Thinkst Applied Research
Product
Canarytokens
Classifications
CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=< sha-8ea5315

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Thinkst Applied Research · Canarytokensversion=< sha-8ea5315

Published CVSS scores

5.4GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

No public exploit references are available in this record.

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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