Jenkins SAML Single Sign On(SSO) Plugin unconditionally disables SSL/TLS certificate validation

published 2023-05-16 3 y ago modified 2026-06-17 4 mo ago also GHSA-9m92-qwpc-qm78 , EUVD-2023-1515

cvss: 3.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits: 0; none known

Jenkins SAML Single Sign On(SSO) Plugin 2.1.0 and earlier unconditionally disables SSL/TLS certificate validation for connections to miniOrange or the configured IdP to retrieve SAML metadata, which could be abused using a man-in-the-middle attack to intercept these connections.

Patch / fix

fixed in 1

maven io.jenkins.plugins:miniorange-saml-sp 2.2.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 21 mo ago (2025-01-23)

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
GitHub	3.1	4.8	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	io.jenkins.plugins:miniorange-saml-sp	<2.2.0	2.2.0

Affected products

Jenkins Project Jenkins SAML Single Sign On(SSO) Plugin

Classification

Weakness

CWE-295 Improper Certificate Validation

References

jenkins.io /security/advisory/2023-05-16/#SECURITY-3001%20(2)
vendor-advisory, web
nvd.nist.gov /vuln/detail/CVE-2023-32994
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary