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Back to active CVEs
Medium · CVSS 5.2CVE-2026-105331

mk-oracle: Local privilege escalation via malicious Oracle Instant ClientCVE-2026-105331

Answer in brief

CVE-2026-105331 records a Medium severity (CVSS 5.2) vulnerability in mk-oracle: Local privilege escalation via malicious Oracle Instant Client. The current sources do not mark it as known exploited. The current feed maps Checkmk GmbH/Checkmk (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 8, 2026Updated Oct 8, 2026Source checked Oct 8, 2026First seen by HOL Oct 8, 2026Material review Oct 8, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.2
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Checkmk GmbH/Checkmk (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Checkmk GmbH/Checkmkgeneric>=2.5.0 <2.5.0p102.5.0p10

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Checkmk GmbH/Checkmk.
  2. 2Review the reported fix. Update Checkmk GmbH/Checkmk to 2.5.0p10 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 8, 2026

Sources and claim methodology

  • Source referencecheckmk.com
Upstream source description

Local privilege escalation in Checkmk 2.5.0 before 2.5.0p10 allows a user with access to edit the Oracle Instant Client referenced by the agent plugin 'mk-oracle' to escalate their privileges if an agent has this plugin enabled.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • ImageMagick before 7.1.2-31 Heap Buffer Overflow via GetVirtualPixels APISame generic ecosystem
  • ImageMagick before 7.1.2-31 Denial of Service via MVG DecoderSame generic ecosystem
  • ImageMagick before 7.1.2-31 Unclosed File Pointer via Magick ScriptSame generic ecosystem
  • ImageMagick before 7.1.2-31 Heap Buffer Overflow in Distributed Pixel Cache ServerSame generic ecosystem
  • ImageMagick before 7.1.2-31 Denial of Service via XMP Profile ParsingSame generic ecosystem
  • ImageMagick before 7.1.2-31 Security Policy Bypass via Coder DomainSame generic ecosystem

Record context

Vulnerability class
Privilege Escalation
EPSS
Not reported
CWE IDs
CWE-426, CWE-829
Source
CVE List V5
Source checked
Oct 8, 2026
References
1 linked source
Open source record