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CVE Record

CVE-2018-1999046: A exposure of sensitive information vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier...

A exposure of sensitive information vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in Computer.java that allows attackers With Overall/Read permission to access the connection log for any agent.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This Jenkins issue could let a user who already has Overall/Read permission view connection logs for any build agent. That may expose operational details about agents and infrastructure. The source bundle does not provide CVSS scoring, named sensitive fields, or proof of exploitation.

Executive priority

Handle as a near-term access control and upgrade hygiene item, not an emergency based on the supplied evidence. Prioritize faster if Jenkins access is broad or externally reachable.

Technical view

CVE-2018-1999046 is an information exposure flaw in Jenkins Computer.java affecting Jenkins 2.137 and earlier and 2.121.2 and earlier. The described access path is limited to attackers with Overall/Read permission, who could access any agent connection log.

Likely exposure

Exposure is most likely in Jenkins environments on the affected versions where Overall/Read is granted broadly, including to contractors, developers, or shared service accounts.

Exploitation context

The bundle does not cite active exploitation, and KEV is false. Abuse requires existing Jenkins Overall/Read permission, so this is primarily an insider, compromised account, or over-permissioned user risk.

Researcher notes

Evidence is limited to the CVE description and Jenkins advisory reference. The bundle names Computer.java, affected versions, and required Overall/Read permission, but provides no CVSS, CWE, detailed patch text, or exploit confirmation.

Mitigation direction

  • Review Jenkins vendor advisory for fixed versions and upgrade guidance.
  • Reduce Overall/Read permission to users with a clear operational need.
  • Audit Jenkins groups, shared accounts, and inherited permissions.
  • Treat exposed agent connection details as potentially sensitive.
  • Monitor Jenkins access logs for unusual agent-log viewing.

Validation and detection

  • Inventory Jenkins controllers and compare versions against 2.137 and 2.121.2.
  • Identify all users and groups with Overall/Read permission.
  • Review whether agent connection logs contain sensitive operational details.
  • Confirm remediation status against current Jenkins advisory guidance.
  • Check security monitoring for suspicious Jenkins read activity.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2018-1999046 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.