CVE-2026-1536 — MEDIUM (5.8)

Vulnerability Description

A flaw was found in libsoup. An attacker who can control the input for the Content-Disposition header can inject CRLF (Carriage Return Line Feed) sequences into the header value. These sequences are then interpreted verbatim when the HTTP request or response is constructed, allowing arbitrary HTTP headers to be injected. This vulnerability can lead to HTTP header injection or HTTP response splitting without requiring authentication or user interaction.

CVSS Score

5.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Gnome	Libsoup	-
Redhat	Enterprise Linux	6.0

Related Weaknesses (CWE)

CWE-93

References

https://access.redhat.com/security/cve/CVE-2026-1536Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2433834Issue TrackingThird Party Advisory
https://gitlab.gnome.org/GNOME/libsoup/-/issues/486ExploitIssue TrackingVendor Advisory

FAQ

What is CVE-2026-1536?

CVE-2026-1536 is a vulnerability with a CVSS score of 5.8 (MEDIUM). A flaw was found in libsoup. An attacker who can control the input for the Content-Disposition header can inject CRLF (Carriage Return Line Feed) sequences into the header value. These sequences are t...

How severe is CVE-2026-1536?

CVE-2026-1536 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-1536?

Check the references section above for vendor advisories and patch information. Affected products include: Gnome Libsoup, Redhat Enterprise Linux.