CVE-2026-77014 (GCVE-0-2026-77014)

Vulnerability from cvelistv5 – Published: 2026-08-20 08:21 – Updated: 2026-08-20 08:21
VLAI
Title
Libsoup: libsoup: integer truncation in sort_ranges() comparator causes silent omission of http range responses
Summary
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.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-197 - Numeric Truncation Error
Assigner
References
Impacted products
Date Public
2026-07-13 00:00
Credits
Red Hat would like to thank Zhengxiong Luo (National University of Singapore) for reporting this issue.
Show details on NVD website
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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