VULNERABILITY INTELLIGENCE

CVE-2026-12549

CVSS score4.8 MEDIUM
EPSS probability0.36%
CISA KEVNot currently listed
Published2026-06-22
Last modified2026-07-08
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

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.

Weakness classification

  • secalert@redhat.com: CWE-805

Primary references