This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-12549 →

DEBIAN-CVE-2026-12549

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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:14 libsoup3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

advisory security-tracker.debian.org