{"id":"CVE-2026-2443","title":"Libsoup: out-of-bounds read in libsoup handle_partial_get() leading to heap information disclosure","summary":"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 c…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-125"],"vendor":"Red Hat","product":"libsoup3","affected":["libsoup3 (all versions)","libsoup (all versions)","libsoup (all versions)","libsoup (all versions)","libsoup (all versions)"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-02-13T12:40:40.304156Z"},"published":"2026-02-13","updated":"2026-11-06","sourceUpdated":"2026-11-06T18:09:13.076Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-2443","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-2443"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2439671","label":"RHBZ#2439671"},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/issues/487"}],"tags":["cve.org"],"epss":0.00488,"epssPercentile":0.42282,"ingestedAt":"2026-11-06T19:01:36.638Z","slug":"CVE-2026-2443","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `libsoup3 (all versions)`\n- `libsoup (all versions)`\n- `libsoup (all versions)`\n- `libsoup (all versions)`\n- `libsoup (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}