CVE Vulnerabilities

CVE-2026-1536

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Published: Jan 28, 2026 | Modified: Jan 29, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
5.8 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Ubuntu
MEDIUM
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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.

Weakness

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

Affected Software

NameVendorStart VersionEnd Version
Libsoup3Ubuntuesm-apps/jammy*
Libsoup3Ubuntujammy*
Libsoup3Ubuntunoble*
Libsoup3Ubuntuquesting*
Libsoup3Ubuntuupstream*

Potential Mitigations

References