CVE-2023-32994Network attack vector

Metadata interception via disabled certificate validation

Published May 16, 2023 · Updated Jan 23, 2025

Improper certificate validation in Jenkins SAML Single Sign On(SSO) Plugin 2.1.0 and earlier allows attackers to intercept SAML metadata. Connections to miniOrange or the configured identity provider retrieve metadata with SSL/TLS certificate validation unconditionally disabled. Exploitation requires control of the network path and exposes intercepted metadata without a reported ability to alter Jenkins or interrupt service.

CVSS severity3.7
Low
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in Jenkins SAML Single Sign On(SSO) Plugin 2.1.0 and earlier allows attackers to intercept SAML metadata. Connections to miniOrange or the configured identity provider retrieve metadata with SSL/TLS certificate validation unconditionally disabled. Exploitation requires control of the network path and exposes intercepted metadata without a reported ability to alter Jenkins or interrupt service.

The record

CVE
CVE-2023-32994
Published
May 16, 2023
Updated
Jan 23, 2025
Vendor
Jenkins Project
Product
SAML Single Sign On(SSO) Plugin
Classifications
CWE-295, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 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=0 <=2.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jenkins Project · SAML Single Sign On(SSO) Pluginversion=0 <=2.1.0

Published CVSS scores

3.7NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.7CISA-ADPCVSS: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 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-295Improper Certificate Validation
T1557Adversary-in-the-Middle

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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