CVE-2026-7010

HTTP::Tiny versions before 0.093 for Perl do not validate CRLF in HTTP request lines or control field header values

Published May 11, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
HTTP::Tiny versions before 0.093 for Perl do not validate CRLF in HTTP request lines or control field header values.

The unvalidated inputs are the method and URI in the request line, the URL host that becomes the `Host:` header, and HTTP/1.1 control data field values.

An attacker who controls one of these inputs, for example a user supplied URL passed to a webhook or URL fetch endpoint, can inject additional headers and smuggle requests to the upstream server.

Remediation

Vendor Solution

Upgrade to HTTP-Tiny 0.093-TRIAL or later.

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4821-1 perl security update
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Haarg
Haarg http::tiny
Vendors & Products Haarg
Haarg http::tiny
Type Values Removed Values Added
Description HTTP::Tiny versions before 0.093 for Perl do not validate CRLF in HTTP request lines or control field header values. The unvalidated inputs are the method and URI in the request line, the URL host that becomes the `Host:` header, and HTTP/1.1 control data field values. An attacker who controls one of these inputs, for example a user supplied URL passed to a webhook or URL fetch endpoint, can inject additional headers and smuggle requests to the upstream server.
Title HTTP::Tiny versions before 0.093 for Perl do not validate CRLF in HTTP request lines or control field header values
Weaknesses CWE-113
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
CPANSec
Published
Updated
Nov 10, 2026, 12:40 PM
Reserved
Apr 25, 2026, 9:18 AM
Status
Deferred
Published
May 11, 2026, 10:22 PM
Modified
Nov 10, 2026, 1:19 PM