CVE-2024-1135

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks including cache poisoning, session manipulation, and data exposure.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-444

Affected software

No affected versions have been published.

Timeline

Published
Apr 16, 2024
Last modified
Jun 17, 2026
NVD status
Deferred

Related CVEs from 2024

CVE-2024-113509.8The AdForest theme for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 5.1.6. ThiCVE-2024-113515.3The Restrict – membership, site, content and user access restrictions for WordPress plugin for WordPress is vulnerable to Sensitive InformatCVE-2024-113526.4The TwentyTwenty plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'twentytwenty' shortcode in all versionsCVE-2024-113534.3The SMS for Lead Capture Forms plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on CVE-2024-113544.3The Ultimate YouTube Video & Shorts Player With Vimeo plugin for WordPress is vulnerable to unauthorized modification of data due to a missiCVE-2024-113554.3The Ultimate YouTube Video & Shorts Player With Vimeo plugin for WordPress is vulnerable to unauthorized access of data due to a missing capCVE-2024-113566.1The tourmaster WordPress plugin before 5.3.4 does not sanitise and escape some parameters when outputting them in the page, which could alloCVE-2024-113575.9The goodlayers-core WordPress plugin before 2.0.10 does not sanitise and escape some of its settings, which could allow users with the contrCVE-2024-113585.5Mattermost Android Mobile Apps versions <=2.21.0 fail to properly configure file providers which allows an attacker with local access to accCVE-2024-113596.1The Library Bookshelves plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without approprCVE-2024-11365.3The Coming Soon Page & Maintenance Mode plugin for WordPress is vulnerable to unauthorized access of data due to an improperly implemented UCVE-2024-113606.1The Page Parts plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of remove_query_arg without appropriate e
CVE-2024-1135: High severity, CVSS 7.5 | Vulnix