CVE-2026-6324
mediumpriority · track · 0EPSS 0.009 · 59 %ileEURUUSEPSS · scored 2026-10-27
A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the `soup_body_input_stream_read_chunked()` function by sending a malicious HTTP request. This vulnerability occurs when libsoup operates behind a non-libsoup proxy server or as a proxy in front of a non-libsoup backend server. Successful exploitation can allow an attacker to bypass security controls, poison web caches, or gain unauthorized access.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (11)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-6324cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2458479cnnvd
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/508cnnvd
- https://gitlab.gnome.org/GNOME/libsoup/-/work_items/508cnnvd
- https://access.redhat.com/security/cve/CVE-2026-6324enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2458479enisa_euvd
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/508enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-6324nvd
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