CVE-2026-77014

Published: Aug 20, 2026Modified: Aug 25, 2026

5.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploitability: 3.9 / Impact: 1.4

Source: secalert@redhat.com (Secondary)

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.

Related CWEs

CWE-197

Numeric Truncation Error

Truncation errors occur when a primitive is cast to a primitive of a smaller size and data is lost in the conversion.

References (3)

https://access.redhat.com/security/cve/CVE-2026-77014

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2520143

Source: secalert@redhat.com

https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/550

Source: secalert@redhat.com

Timeline

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