CVE-2026-13738
A remote, anonymous attacker can exploit multiple vulnerabilities in Commvault Backup & Recovery to bypass security measures, execute arbitrary code, and conduct server-side request forgery attacks.
CSIRTS triage
- What
- Remote vulnerabilities in Commvault Backup & Recovery enable authentication bypass, arbitrary code execution, and server-side request forgery.
- Who is affected
- Organizations using Commvault Backup & Recovery accessible from the network.
- Urgency
- High severity affecting a critical backup solution; exploitable without authentication.
- Action
- Apply Commvault security patches for CVE-2026-13737, CVE-2026-13738, and CVE-2026-13739 immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.
Advisory coverage (2)
- high[NEW] [high] Commvault Backup & Recovery: Multiple Vulnerabilitiescert-bund · 2026-08-12
- unknownCVE-2026-13738: CommServe contained an authorization bypass vulnerability affecting a limited set of command e…nvd · 2026-08-11
External references
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[](https://www.csirts.com/cve/CVE-2026-13738)