Upstream information

CVE-2026-115822 at MITRE

Description

Starman versions before 0.4019 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies.

Starman decodes chunked request bodies before calling the application, matching each chunk-size line with `s/^(([0-9a-fA-F]+).*\015\012)//`. A line of hex digits followed by a bare LF and then CRLF never matches, because `.` does not match LF, and each failed attempt backtracks in time quadratic in the length of the hex run. Nothing limits the length of the line.

A remote attacker can exhaust worker CPU by sending such requests to any route.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

SUSE Bugzilla entry: 1287695 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • perl-Starman >= 0.4019-1.1
Patchnames:
openSUSE-Tumbleweed-2026-12276


SUSE Timeline for this CVE

CVE page created: Mon Oct 26 17:56:29 2026
CVE page last modified: Tue Oct 27 17:50:10 2026