Jenkins Reverse Proxy Auth Plugin allows attackers with local file system access to obtain a list of authorities for logged in users

published 2018-04-05 8y ago modified 2026-06-17 4mo ago also GHSA-m9j2-grqf-fg26 , EUVD-2022-4537

cvss: 3.3; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits: 0; none known

An exposure of sensitive information vulnerability exists in Jenkins Reverse Proxy Auth Plugin 1.5 and older in ReverseProxySecurityRealm#authContext that allows attackers with local file system access to obtain a list of authorities for logged in users.

Patch / fix

fixed in 1

maven org.jenkins-ci.plugins:reverse-proxy-auth-plugin 1.6.0

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Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	3.3	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	2.1	AV:L/AC:L/Au:N/C:P/I:N/A:N
GitHub	3.0	3.3	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.jenkins-ci.plugins:reverse-proxy-auth-plugin	<1.6.0	1.6.0

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

jenkins.io /security/advisory/2018-03-26/#SECURITY-736
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2018-1000150
advisory
github.com /jenkinsci/reverse-proxy-auth-plugin
package

Sources

Fencer Intel 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.