CVE-2026-2443
mediumEPSS 0.005 · 41 %ileEURUUSEPSS · scored 2026-10-18
A flaw was identified in libsoup, a widely used HTTP library in GNOME-based systems. When processing specially crafted HTTP Range headers, the library may improperly validate requested byte ranges. In certain build configurations, this could allow a remote attacker to access portions of server memory beyond the intended response. Exploitation requires a vulnerable configuration and access to a server using the embedded SoupServer component.
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 (17)
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 (9)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-2443cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2439671cnnvd
- https://vigilance.fr/vulnerability/libsoup-memory-reading-via-HTTP-Range-Headers-49848cnnvd
- https://access.redhat.com/security/cve/CVE-2026-2443enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2439671enisa_euvd
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/487enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-2443Vendor Advisorynvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2439671Issue TrackingVendor Advisorynvd
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