CVE-2026-12549
Libsoup: incomplete fix for cve-2026-2443: range suffix overflow in libsoup soupserver
Description
The fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:NIntegrityNone
A:LAvailabilityLow
Weaknesses
Affected Products
Red Hat
commercial·USaka redhat
gnome
oss-project·USaka glib, gnome project
and 5 more affected products View all →
Exploitability
Official Patch Available
Workaround Available
References
https://access.redhat.com/security/cve/CVE-2026-12549
access.redhat.com
https://access.redhat.com/security/cve/cve-2026-0716
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2489999
bugzilla.redhat.com
and 1 more references View all →
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