CVE-2024-36996Network attack vector

Username enumeration via divergent SAML login errors

Published Jul 1, 2024 · Updated Feb 28, 2025

Observable response discrepancy in affected Splunk Enterprise and Splunk Cloud Platform releases allows remote attackers to enumerate SAML users. The SAML login flow returns distinguishable error responses for existing and nonexistent users, exposing account validity without authentication. Exposure requires Splunk Web with SAML authentication and enables targeted password guessing; it does not directly disclose passwords or data.

CVSS severity5.3
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Observable response discrepancy in affected Splunk Enterprise and Splunk Cloud Platform releases allows remote attackers to enumerate SAML users. The SAML login flow returns distinguishable error responses for existing and nonexistent users, exposing account validity without authentication. Exposure requires Splunk Web with SAML authentication and enables targeted password guessing; it does not directly disclose passwords or data.

The record

CVE
CVE-2024-36996
Published
Jul 1, 2024
Updated
Feb 28, 2025
Vendor
Splunk, Inc.
Product
Splunk Enterprise
Classifications
CWE-204, CWE-203, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 28, 2025Record 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=9.0 <9.0.10
  2. Affected versionversion=9.1 <9.1.5
  3. Affected versionversion=9.2 <9.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Splunk, Inc. · Splunk Enterpriseversion=9.0 <9.0.10; version=9.1 <9.1.5; version=9.2 <9.2.2
Splunk, Inc. · Splunk Cloud Platformversion=9.1.2312 <9.1.2312.109

Published CVSS scores

5.3SplunkCVSS:3.1/AV:N/AC:L/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-204Observable Response Discrepancy
CWE-203Observable Discrepancy
T1087Account 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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