SEPTEMBER 18, 2026
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Case File

CVE-2026-77014

MEDIUM · CVSS 5.3 EPSS 0.23%

Source: NVD + CISA KEV + EPSS · Published 2026-08-20 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

A vulnerability exists in libsoup's handling of HTTP Range headers, where the sort_ranges() comparator improperly truncates a 64-bit subtraction result to a 32-bit integer. This flaw can lead to the silent omission of requested byte ranges in HTTP 206 Partial Content responses for resources exceeding approximately 2 GB, potentially impacting data retrieval for large files. Organizations utilizing libsoup for HTTP server implementations should prioritize addressing this issue to ensure proper handling of byte range requests.

CVE
CVE-2026-77014
Severity
MEDIUM
CVSS
5.3
EPSS
0.23%

Original NVD Description

A flaw was found in libsoup's SoupServer HTTP Range header processing. The sort_ranges() comparator in soup-message-headers.c truncates a 64-bit subtraction result to 32-bit int, flipping the sign for range offsets differing by more than INT_MAX. This causes silent omission of requested byte ranges from HTTP 206 Partial Content responses on resources larger than approximately 2 GB.