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High · CVSS 8.7CVE-2026-97334

Network messaging layer decompression resource exhaustionCVE-2026-97334

Answer in brief

CVE-2026-97334 records a High severity (CVSS 8.7) vulnerability in Network messaging layer decompression resource exhaustion. The current sources do not mark it as known exploited. The current feed maps Commvault/Commvault Cloud (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 13, 2026Updated Oct 14, 2026Source checked Oct 25, 2026First seen by HOL Oct 13, 2026Material review Oct 14, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
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 8.7. 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 Commvault/Commvault Cloud (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Commvault/Commvault Cloudgeneric>=11.46.0 <=11.46.29 || >=11.44.0 <=11.44.24 || >=11.40.0 <=11.40.77 || >=11.36.0 <=11.36.126Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Commvault/Commvault Cloud.
  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 13, 2026

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

  2. Source modified

    Oct 14, 2026

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

  3. First seen by HOL

    Oct 13, 2026

Sources and claim methodology

  • Source referencedocumentation.commvault.com
Upstream source description

The network messaging layer contained improper handling of highly compressed data affecting service availability. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe server, Web Server, Command Center, MediaAgents, clients, and HyperScale.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-409
Source
CVE List V5
Source checked
Oct 25, 2026
References
1 linked source
Open source record