CVE-2026-116285

HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies. In chunked mode, used when no content length is given, add() matches each chunk-size line with `/^([\da-fA-F]+).*\x0D\x0A/`. On a line of hex digits whose first LF has no CR before it, the digits and `.*` backtrack against each other, so a single add() takes time quadratic in the line's length. Nothing limits how long the line can be. A remote attacker can exhaust CPU in applications that pass chunked request bodies to HTTP::Body.
CVSS

No CVSS.

Configurations

No configuration.

History

28 Oct 2026, 18:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-28 18:17

Updated : 2026-10-29 15:11


NVD link : CVE-2026-116285

Mitre link : CVE-2026-116285

CVE.ORG link : CVE-2026-116285


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Products Affected

No product.

CWE
CWE-1333

Inefficient Regular Expression Complexity