CVE-2024-8462Network attack vector

Unauthorized data access via unthrottled token guessing

Published Sep 5, 2024 · Updated Sep 5, 2024

Improper authentication attempt restriction in Windmill 1.380.0 allows remote attackers to brute-force API tokens over HTTP. Token and scoped-token request handlers immediately return unauthorized responses without counting or delaying failed guesses, permitting high-rate attempts. No prior account is required, but successful exploitation depends on guessing a valid token and exposes only data accessible through that token.

CVSS severity6.3
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication attempt restriction in Windmill 1.380.0 allows remote attackers to brute-force API tokens over HTTP. Token and scoped-token request handlers immediately return unauthorized responses without counting or delaying failed guesses, permitting high-rate attempts. No prior account is required, but successful exploitation depends on guessing a valid token and exposes only data accessible through that token.

The record

CVE
CVE-2024-8462
Published
Sep 5, 2024
Updated
Sep 5, 2024
Vendor
Windmill Labs
Product
Windmill
Classifications
CWE-307, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 5, 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=1.380.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Windmill Labs · Windmillversion=1.380.0

Published CVSS scores

2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N
6.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110Brute Force

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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