Out-of-bounds Read Affecting libsoup3 package, versions <3.6.6-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.43% (35th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBSOUP3-15279747
  • published14 Feb 2026
  • disclosed13 Feb 2026

Introduced: 13 Feb 2026

CVE-2026-2443  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Debian:unstable libsoup3 to version 3.6.6-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsoup3 package and not the libsoup3 package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A flaw was identified in libsoup, a widely used HTTP library in GNOME-based systems. When processing specially crafted HTTP Range headers, the library may improperly validate requested byte ranges. In certain build configurations, this could allow a remote attacker to access portions of server memory beyond the intended response. Exploitation requires a vulnerable configuration and access to a server using the embedded SoupServer component.

CVSS Base Scores

version 3.1