Google Go 1.23/1.24 net-http request smuggling

Summaryinfo

A vulnerability was found in Google Go 1.23/1.24. It has been declared as problematic. Affected is an unknown function of the component net-http. The manipulation results in request smuggling. This vulnerability is cataloged as CVE-2025-22871. The attack may be launched remotely. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Google Go 1.23/1.24. Affected is some unknown processing of the component net-http. The manipulation with an unknown input leads to a request smuggling vulnerability. CWE is classifying the issue as CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. This is going to have an impact on integrity.

The advisory is available at go.dev. This vulnerability is traded as CVE-2025-22871 since 01/08/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/21/2025).

The vulnerability scanner Nessus provides a plugin with the ID 233887 (SUSE SLED15 / SLES15 / openSUSE 15 Security Update : go1.23 (SUSE-SU-2025:1141-1)), which helps to determine the existence of the flaw in a target environment.

Applying the patch ac1f5aa3d62efe21e65ce4dc30e6996d59acfbd0 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (233887), EUVD (EUVD-2025-11855) and CERT Bund (WID-SEC-2025-0679). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

• Amazon Linux 2
• Red Hat Enterprise Linux
• SUSE Linux
• Oracle Linux
• Red Hat OpenShift
• SUSE openSUSE
• IBM App Connect Enterprise
• Zabbix Zabbix
• Golang Go
• Open Source Gitea
• Fedora Linux
• IBM MQ

Productinfo

Type

• Programming Language Software

Vendor

• Google

Name

• Go

Version

• 1.23
• 1.24

License

• open-source

Website

• Vendor: https://www.google.com/

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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