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CVE-2026-3632

3.9 · LOW

A flaw was found in libsoup, a library used by applications to send network requests.

Published Mar 17, 2026CWE-1286EPSS 0.36%

Overview

CVE-2026-3632 is a low-severity vulnerability. It was published on March 17, 2026 and has a CVSS 3.1 base score of 3.9 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.9, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

A flaw was found in libsoup, a library used by applications to send network requests. This vulnerability occurs because libsoup does not properly validate hostnames, allowing special characters to be injected into HTTP headers. A remote attacker could exploit this to perform HTTP smuggling, where they can send hidden, malicious requests alongside legitimate ones. In certain situations, this could lead to Server-Side Request Forgery (SSRF), enabling an attacker to force the server to make unauthorized requests to other internal or external systems. The impact is low, as SoupServer is not actually used in internet infrastructure.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/security/cve/CVE-2026-3632Refbugzilla.redhat.com/show_bug.cgi?id=2445127Refgitlab.gnome.org/GNOME/libsoup/-/issues/483

How CyberStrike helps

Frequently asked questions

What is CVE-2026-3632?

CVE-2026-3632 is a low-severity vulnerability. It was published on March 17, 2026 and has a CVSS 3.1 base score of 3.9 (LOW).

How severe is CVE-2026-3632?

This vulnerability has a CVSS 3.1 base score of 3.9, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-3632?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-3632?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-3632 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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