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CVE-2026-2708
LOW3.7
Description
A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soup_message_headers_append_common() function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker to send HTTP requests containing multiple Content-Length headers with differing values.
CVE Details
CVSS v3.1 Score3.7
SeverityLOW
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack VectorNETWORK
ComplexityHIGH
Privileges RequiredNONE
User InteractionNONE
Published4/23/2026
Last Modified4/24/2026
Sourcenvd
Honeypot Sightings0
Weaknesses (CWE)
CWE-444
References
https://access.redhat.com/security/cve/CVE-2026-2708(secalert@redhat.com)
https://bugzilla.redhat.com/show_bug.cgi?id=2440743(secalert@redhat.com)
https://gitlab.gnome.org/GNOME/libsoup/-/issues/500(secalert@redhat.com)
https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/513(secalert@redhat.com)
IOC Correlations
No correlations recorded
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