Threats tagged 'cwe-624'

HTTP::Headers::ActionPack versions before 0.10 for Perl allow CPU exhaustion via Accept-Language ranges matched as regular expressions. _language_match interpolates each Accept-Language range into the pattern `/^$range\-/i` without escaping it, so regular expression syntax in the header reaches the regex engine. A 12-byte range such as `(a?|b?){26}z` backtracks for seconds, and each increment of the quantifier doubles the time. An invalid range such as `(` fails to compile. A remote attacker can exhaust CPU, or make choose_language die, in any application that passes an untrusted Accept-Language header to it.

CVE-2026-25237 is a critical vulnerability in pearweb, a component of the PEAR PHP framework, affecting versions prior to 1.33.0. It arises from the use of preg_replace() with the deprecated /e modifier, which allows attacker-controlled input to be evaluated as PHP code during bug update email handling. This leads to remote code execution without requiring authentication or user interaction. The vulnerability has a CVSS 4.0 score of 9.2, indicating high impact on confidentiality, integrity, and availability. Although no known exploits are currently reported in the wild, the ease of exploitation and severity make it a significant threat. European organizations using pearweb in their PHP environments are at risk, especially those in sectors relying on legacy PHP components.