Linuxsecurity Resource Exhaustion Vulnerability in perl-HTML-FormFu Affects Fedora Users
Article Content
- •CVE-2026-19873 allows denial of service via unbounded repeat count.
- •Patches released for Fedora versions 43, 44, and 45.
- •CISA confirms active exploitation of the vulnerability.
A resource exhaustion vulnerability (CVE-2026-19873) has been identified in the perl-HTML-FormFu framework, affecting versions through 2.08. This flaw allows for denial of service via an unbounded repeat count from the query string in Repeatable elements. The vulnerability has been confirmed to be exploited, prompting CISA to issue advisories. Fedora has released patches for versions 43, 44, and 45 to mitigate this risk. The patches include a max_counter attribute that limits the repeat count to a default of 100. Users are urged to apply the updates immediately to protect their systems. The flaw was published on August 31, 2026, and is now actively being exploited. Administrators should check their systems for the necessary updates.
Ask AI about this cluster
Answers cite the sources they use
Timeline
More articles in this cluster (3)
Following this threat?
Track CVE-2026-19873 in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.
Free account · no card needed
Continue Reading
Critical Zero-Day Exploits Target F5 and Check Point Products F5 Networks released emergency hotfixes for a critical zero-day vulnerability, CVE-2026-94127, in its BIG-IP Access Policy Manager on September 22, 2026, after confirming active exploitation. This flaw allows unauthenticated remote code execution (RCE) and has a CVSS score of 9.8. Concurrently, Check Point disclosed… 
Critical Zero-Day Vulnerability in F5 BIG-IP APM Exploited for Remote Code Execution F5 Networks has reported a critical vulnerability in its BIG-IP Access Policy Manager (APM), tracked as CVE-2026-94127, which is being actively exploited in the wild. The flaw allows unauthenticated attackers to execute remote code on systems configured with both an APM access policy and an OAuth profile. This…