CVE-2025-15097Public exploitNetwork attack vector

Administrator access via unauthenticated session creation

Published Dec 26, 2025 · Updated Dec 26, 2025

Authentication bypass in Alteryx Server through 2025.1 allows remote attackers to create authenticated sessions without credentials. The /gallery/api/auth/sessions/ endpoint accepts a windows scheme with empty parameters and returns a session ID and user details without validating credentials. Only Built-In and SAML authentication are affected; the returned session can grant Administrator-level application access.

CVSS severity7.3
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Alteryx Server through 2025.1 allows remote attackers to create authenticated sessions without credentials. The /gallery/api/auth/sessions/ endpoint accepts a windows scheme with empty parameters and returns a session ID and user details without validating credentials. Only Built-In and SAML authentication are affected; the returned session can grant Administrator-level application access.

The record

CVE
CVE-2025-15097
Published
Dec 26, 2025
Updated
Dec 26, 2025
Vendor
Alteryx
Product
Alteryx Server
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 26, 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=2020.2.3.27789
  2. Affected versionversion=2021.4.2.47895
  3. Affected versionversion=2022.1.1.30961
  4. Affected versionversion=2022.1.1.42707
  5. Affected versionversion=2023.1.1.123
  6. Affected versionversion=2023.1.1.306
  7. Affected versionversion=2023.2.1.51
  8. Affected versionversion=2024.1.1.136
  9. Affected versionversion=2024.1.1.209
  10. Affected versionversion=2024.1.1.49
  11. Affected versionversion=2024.2.1.14
  12. Affected versionversion=2024.2.1.41
  13. Affected versionversion=2024.2.1.73
  14. Affected versionversion=2024.2.1.94

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Alteryx · Alteryx Serverversion=2020.2.3.27789; version=2021.4.2.47895; version=2022.1.1.30961; version=2022.1.1.42707; version=2023.1.1.123; version=2023.1.1.306; version=2023.2.1.51; version=2024.1.1.136; version=2024.1.1.209; version=2024.1.1.49; version=2024.2.1.14; version=2024.2.1.41; version=2024.2.1.73; version=2024.2.1.94

Published CVSS scores

5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

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 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 exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
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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