CVE-2026-7010Network attack vector

Request smuggling via unvalidated request metadata

Published May 11, 2026 · Updated May 11, 2026

HTTP request smuggling in HTTP::Tiny before 0.093 allows remote attackers to inject headers and upstream requests via crafted input. The write_request_header and write_header_lines methods serialize unvalidated method, URI, Host-derived URL data, and control header values into HTTP/1.1 requests. Reachability requires an application to pass attacker-controlled input, such as a webhook URL, and permits altered requests at the upstream server.

CVSS severity6.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTTP request smuggling in HTTP::Tiny before 0.093 allows remote attackers to inject headers and upstream requests via crafted input. The write_request_header and write_header_lines methods serialize unvalidated method, URI, Host-derived URL data, and control header values into HTTP/1.1 requests. Reachability requires an application to pass attacker-controlled input, such as a webhook URL, and permits altered requests at the upstream server.

The record

CVE
CVE-2026-7010
Published
May 11, 2026
Updated
May 11, 2026
Vendor
Graham Knop
Product
HTTP::Tiny
Classifications
CWE-113, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=0 <0.093

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Graham Knop · HTTP::Tinyversion=0 <0.093

Published CVSS scores

6.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-113Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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