CVE-2026-42496
A remote, anonymous attacker can exploit multiple vulnerabilities in cPanel cPanel/WHM to disclose confidential information or manipulate data.
CSIRTS triage
- What
- Multiple vulnerabilities in cPanel/WHM (Archive-Tar) enable file manipulation and information disclosure.
- Who is affected
- cPanel/WHM instances accessible to remote unauthenticated attackers are vulnerable.
- Urgency
- High priority; remote unauthenticated exploitation is possible.
- Action
- Update cPanel/WHM to a version patching CVE-2026-42496 and CVE-2026-42497.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.
Advisory coverage (1)
- high[NEW] [high] cPanel cPanel/WHM (Archive-Tar): Multiple vulnerabilities enable file manipulationcert-bund · 2026-08-07
External references
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[](https://www.csirts.com/cve/CVE-2026-42496)