CVE-2026-77014

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-77014
https://bugzilla.redhat.com/show_bug.cgi?id=2520143
https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/550

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-20 09:16

Updated : 2026-08-25 15:16

NVD link : CVE-2026-77014

Mitre link : CVE-2026-77014

CVE.ORG link : CVE-2026-77014

JSON object : View

Products Affected

No product.

CWE

CWE-197

Numeric Truncation Error

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