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Back to active CVEs
High · CVSS 8.8CVE-2026-4337

Unrestricted Upload of File in PuMuKIT applicationCVE-2026-4337

Answer in brief

CVE-2026-4337 records a High severity (CVSS 8.8) vulnerability in Unrestricted Upload of File in PuMuKIT application. The current sources do not mark it as known exploited. The current feed maps PuMuKIT/PuMuKIT (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 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.8. 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 PuMuKIT/PuMuKIT (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
PuMuKIT/PuMuKITgeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for PuMuKIT/PuMuKIT.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 27, 2026

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

  2. Source modified

    Oct 27, 2026

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

  3. First seen by HOL

    Oct 27, 2026

Sources and claim methodology

  • Source referenceincibe.es
Upstream source description

Unrestricted Upload of File with Dangerous Type vulnerability in the PuMuKIT application allows a unauthenticated user to upload any type of file to the server, and to any path where the web server user has write permissions. This could also allow them to delete files.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-434
Source
CVE List V5
Source checked
Oct 27, 2026
References
1 linked source
Open source record