Vulnerability Report

CVE-2026-1536

Title: HTTP Header Injection / Response Splitting in libsoup

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-1536.

CWE Category CWE-93

Published Date Jan 28, 2026

Modified Date Mar 25, 2026

Exploit Status Not Found

Score 5.8 CVSS v3.1

Exploit Probability (EPSS)

0.30%

Vulnerability Summary

CVE-2026-1536: 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.

Impacted Vendors

libsoup 1

gnome 1

Reference Links

https://access.redhat.com/security/cve/CVE-2026-1536 https://bugzilla.redhat.com/show_bug.cgi?id=2433834

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

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