Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnome | Libsoup | - |
| Redhat | Enterprise Linux | 6.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2026-3632Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2445127Issue TrackingVendor Advisory
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/483ExploitIssue TrackingVendor Advisory
FAQ
What is CVE-2026-3632?
CVE-2026-3632 is a vulnerability with a CVSS score of 3.9 (LOW). 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 ...
How severe is CVE-2026-3632?
CVE-2026-3632 has been rated LOW with a CVSS base score of 3.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3632?
Check the references section above for vendor advisories and patch information. Affected products include: Gnome Libsoup, Redhat Enterprise Linux.