CVE-2026-10276Public exploitNetwork attack vector

Authenticated SSRF via protocol-relative job paths

Published Jun 1, 2026 · Updated Jun 1, 2026

Server-side request forgery in hekmon8 Jenkins Server MCP 0.1.0 allows remote authenticated users to reach internal hosts via jobPath. The affected handlers concatenate jobPath into Axios request paths; a leading slash creates a protocol-relative URL that replaces the configured Jenkins host. Access to MCP tool calls and server egress is required; successful requests can probe internal services or invoke state-changing endpoints.

CVSS severity6.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in hekmon8 Jenkins Server MCP 0.1.0 allows remote authenticated users to reach internal hosts via jobPath. The affected handlers concatenate jobPath into Axios request paths; a leading slash creates a protocol-relative URL that replaces the configured Jenkins host. Access to MCP tool calls and server egress is required; successful requests can probe internal services or invoke state-changing endpoints.

The record

CVE
CVE-2026-10276
Published
Jun 1, 2026
Updated
Jun 1, 2026
Vendor
hekmon8
Product
Jenkins Server MCP
Classifications
CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 2026Record 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=0.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

hekmon8 · Jenkins Server MCPversion=0.1.0

Published CVSS scores

6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

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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