๐Ÿ›ก๏ธ CVE-2025-59822
๐ŸŸ  CVSS 7.5 โ€” High โš ๏ธ Exploit Public CWE-444 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Http4s is a Scala interface for HTTP services. In versions from 1.0.0-M1 to before 1.0.0-M45 and before 0.23.31, http4s is vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer section. This vulnerability could enable attackers to bypass front-end servers security controls, launch targeted attacks against active users, and poison web caches. A pre-requisite for exploitation involves the web application being deployed behind a reverse-proxy that forwards trailer headers. This issue has been patched in versions 1.0.0-M45 and 0.23.31.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE CWE-444
Public Exploit โš ๏ธ Yes
Source NVD
Published 2025-09-23
Updated 2026-06-15
Modified 2025-10-08

Affected Packages

Software From version Fixed in
http4s โ€” โ€”
org.http4s:http4s-ember-core-2.12 โ€” 0.23.31
org.http4s:http4s-ember-core-2.13 1.0.0-M1 1.0.0-M45
org.http4s:http4s-ember-core-3 1.0.0-M1 1.0.0-M45

Similar Threats

Exploit Protection

Help block exploit attempts

BotEraser is designed to detect and help reduce malicious bot traffic that may target known vulnerabilities on your site.

Try BotEraser Free โ†’

No credit card required  ยท  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.