CVE-2026-3633

LOW

3.9

Description

A flaw was found in libsoup. A remote attacker, by controlling the method parameter of the `soup_message_new()` function, could inject arbitrary headers and additional request data. This vulnerability, known as CRLF (Carriage Return Line Feed) injection, occurs because the method value is not properly escaped during request line construction, potentially leading to HTTP request injection.

CVE Details

CVSS v3.1 Score3.9

SeverityLOW

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredHIGH

User InteractionREQUIRED

Published3/17/2026

Last Modified3/19/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gnome:libsoupredhat:enterprise_linux

Weaknesses (CWE)

CWE-93

References

https://access.redhat.com/security/cve/CVE-2026-3633(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2445128(secalert@redhat.com)

https://gitlab.gnome.org/GNOME/libsoup/-/issues/484(secalert@redhat.com)

IOC Correlations

No correlations recorded

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