VULNERABILITY INTELLIGENCE
CVE-2026-77014
CVSS score5.3 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2026-08-20
Last modified2026-10-27
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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.
Weakness classification
- CWE-197: Numeric Truncation Error