CVE-2026-48959

A flaw was found in perl-IO-Compress. An attacker can exploit a vulnerability in the IO::Uncompress::Unzip module's fastForward() function by providing a specially crafted zip file. When a named entry is extracted, a per-byte read loop occurs, leading to CPU exhaustion. This can result in a Denial of Service (DoS) condition, as the processing scales with the compressed size of the entry.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.