What is CVE-2026-1536?

CVE-2026-1536 is a medium-severity vulnerability in Gnome Libsoup, classified under CRLF Injection. CVSS score: 5.8/10. Published 2026-01-28.

How severe is CVE-2026-1536?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Vulnerability in Gnome Libsoup

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…

Vulnerability class: CRLF Injection

EPSS: 0.003 (21.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.

Affected products

Gnome Libsoup
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Redhat Enterprise_linux — versions 6.0, 7.0, 8.0

Weakness classification (CWE)

CWE-93 — CRLF Injection

References

secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)
secalert@redhat.com (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2026-1536?: CVE-2026-1536 is a medium-severity vulnerability in Gnome Libsoup, classified under CRLF Injection. CVSS score: 5.8/10. Published 2026-01-28.
How severe is CVE-2026-1536?: Medium severity. CVSS v3 base score is 5.8 out of 10.