AUGUST 25, 2026
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Case File

CVE-2026-12549

MEDIUM · CVSS 4.8 EPSS 0.41%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-22 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.8. See the original NVD description below for full technical details.

CVE
CVE-2026-12549
Severity
MEDIUM
CVSS
4.8
EPSS
0.41%

Original NVD 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.

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