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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.

PUBLISHED Reserved 2026-01-28 | Published 2026-01-28 | Updated 2026-01-28 | Assigner redhat




MEDIUM: 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Problem types

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Product status

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Timeline

2026-01-28:Reported to Red Hat.
2026-01-28:Made public.

Credits

Red Hat would like to thank Codean Labs for reporting this issue.

References

access.redhat.com/security/cve/CVE-2026-1536 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2433834 (RHBZ#2433834) issue-tracking

cve.org (CVE-2026-1536)

nvd.nist.gov (CVE-2026-1536)

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