Security readout for executives and security teams
Plain-English summary
CVE-2018-1000112 is an authorization flaw in Jenkins Mercurial Plugin 2.2 and earlier. A network-reachable attacker could obtain lists of Jenkins nodes and users. The sources do not show code execution, data modification, or active exploitation, but the exposure can aid reconnaissance against Jenkins environments.
Executive priority
Treat as a moderate-priority Jenkins hardening issue. It is not documented as actively exploited, but exposed Jenkins metadata can support follow-on attacks and should be remediated during the next security maintenance window.
Technical view
The CVE describes improper authorization in MercurialStatus.java in Jenkins Mercurial Plugin 2.2 and earlier. The documented impact is unauthorized disclosure of node and user lists to an attacker with network access. No CVSS, CWE, exploit status, or concrete fixed version is included in the provided bundle.
Likely exposure
Exposure is likely limited to Jenkins controllers that have the Mercurial Plugin installed at version 2.2 or earlier and are reachable by untrusted networks or users.
Exploitation context
The source bundle does not report active exploitation, KEV listing, public exploit use, or weaponized details. The attacker requirement is network access, and the stated result is enumeration of nodes and users.
Researcher notes
Evidence is sparse. The provided CVE text names the vulnerable component, version range, file, attacker access level, and disclosure impact, but does not provide CVSS, CWE, fixed version, or exploitation evidence.
Mitigation direction
- Inventory Jenkins instances for Mercurial Plugin usage and version.
- Review Jenkins advisory SECURITY-726 for vendor remediation guidance.
- Upgrade or remove affected plugin versions if vendor guidance confirms that path.
- Restrict network access to Jenkins administrative and plugin endpoints.
- Review Jenkins authentication and authorization exposure for untrusted users.
Validation and detection
- Confirm whether Mercurial Plugin version 2.2 or earlier is installed.
- Check Jenkins is not reachable from unnecessary external or untrusted networks.
- Review access logs for unusual requests to Mercurial-related status endpoints.
- Verify vendor advisory guidance has been applied on every Jenkins controller.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2018-1000112 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://jenkins.io/security/advisory/2018-02-26/#SECURITY-726CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.