ID:12829 - Exploit for Resource exhaustion in PhpSpreadsheet - CVE-2026-59932

Link to public exploit:

Vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within gnumeric reader unbounded gzip expansion. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Remediation