CVE-2026-68006

Puma Web Server HTTP/1.1 Parser Arbitrary Code Execution Vulnerability

Published Sep 10, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
An issue in Puma v.5.0.0 and before v.8.0.3 allows an attacker to execute arbitrary code via the ext/puma_http11/http11_parser.rl file

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
References
History
Type Values Removed Values Added
Title Puma Web Server HTTP/1.1 Parser Arbitrary Code Execution Vulnerability
Type Values Removed Values Added
Weaknesses CWE-444
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

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

Type Values Removed Values Added
First Time appeared Puma
Puma puma
Vendors & Products Puma
Puma puma
Type Values Removed Values Added
Title Remote Code Execution via Unsafe HTTP/1.1 Parser in Puma
Type Values Removed Values Added
Weaknesses CWE-94
Type Values Removed Values Added
Title Remote Code Execution via Unsafe HTTP/1.1 Parser in Puma
Weaknesses CWE-94
Type Values Removed Values Added
Title Arbitrary code execution via HTTP/1.1 parser in Puma
Weaknesses CWE-94
Type Values Removed Values Added
Title Arbitrary code execution via HTTP/1.1 parser in Puma
Weaknesses CWE-94
Type Values Removed Values Added
Description An issue in Puma v.5.0.0 and before v.8.0.3 allows an attacker to execute arbitrary code via the ext/puma_http11/http11_parser.rl file
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 14, 2026, 6:14 PM
Reserved
Jul 30, 2026, 12:00 AM
Status
Awaiting Analysis
Published
Sep 10, 2026, 6:18 PM
Modified
Sep 14, 2026, 7:17 PM