{"id":"CVE-2026-85197","title":"A flaw was found in libsoup","summary":"A flaw was found in libsoup. A malicious HTTP/2 server or a Man-in-the-Middle (MITM) attacker can exploit a heap use-after-free vulnerability in the HTTP/2 client implementation. This occurs when a GNOME application uploads a file using …","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","cwe":["CWE-416"],"vendor":"Red Hat","product":"libsoup3","affected":["libsoup3 (all versions)","libsoup","libsoup","libsoup","libsoup"],"published":"2026-09-04","updated":"2026-09-16","sourceUpdated":"2026-09-16T18:17:17.720","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85197","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:68235","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-85197","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2528425","label":"secalert@redhat.com"},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/work_items/552","label":"secalert@redhat.com"},{"url":"https://gitlab.gnome.org/GNOME/libsoup/-/work_items/552","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-85197.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-85197"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85197"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"epss":0.00222,"epssPercentile":0.13062,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-04T18:15:03.474491Z"},"ingestedAt":"2026-09-08T20:10:03.163Z","patched":["enterprise_linux_appstream_v_10","enterprise_linux_codeready_linux_builder_v_10"],"slug":"CVE-2026-85197","body":"## Overview\n\nA flaw was found in libsoup. A malicious HTTP/2 server or a Man-in-the-Middle (MITM) attacker can exploit a heap use-after-free vulnerability in the HTTP/2 client implementation. This occurs when a GNOME application uploads a file using HTTP/2, and the server sends a GOAWAY frame while the file body is being read asynchronously. This can lead to memory corruption, potentially resulting in information disclosure or arbitrary code execution.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:68235** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-09-16 · [advisory](https://access.redhat.com/errata/RHSA-2026:68235)","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":41.8,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":205665,"id":"CVE-2026-85197","ts":1789581743348,"field":"exploit_available","old":"false","new":"true"}]}