CVE-2025-64135Network attack vector

Credential disclosure via enabled Basic proxy tunneling

Published Oct 29, 2025 · Updated Oct 29, 2025

Insecure initialization in Jenkins Eggplant Runner Plugin 0.0.1.301.v963cffe8ddb_8 and earlier allows remote attackers to read proxy credentials. Applying a proxy configuration sets jdk.http.auth.tunneling.disabledSchemes to an empty value, re-enabling Basic authentication for HTTPS proxy tunnels. Exploitation requires a proxy path offering Basic authentication, where the Java restriction no longer prevents credential exposure.

CVSS severity5.9
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Insecure initialization in Jenkins Eggplant Runner Plugin 0.0.1.301.v963cffe8ddb_8 and earlier allows remote attackers to read proxy credentials. Applying a proxy configuration sets jdk.http.auth.tunneling.disabledSchemes to an empty value, re-enabling Basic authentication for HTTPS proxy tunnels. Exploitation requires a proxy path offering Basic authentication, where the Java restriction no longer prevents credential exposure.

The record

CVE
CVE-2025-64135
Published
Oct 29, 2025
Updated
Oct 29, 2025
Vendor
Jenkins Project
Product
Eggplant Runner Plugin
Classifications
CWE-1188, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.0.1.301.v963cffe8ddb_8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jenkins Project · Eggplant Runner Pluginversion=0 <=0.0.1.301.v963cffe8ddb_8

Published CVSS scores

5.9CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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-1188Initialization of a Resource with an Insecure Default
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo