{"id":"CVE-2026-51082","aliases":["EUVD-2026-45182","GHSA-vjf4-fxgw-f2mh"],"status":"published","title":"A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment ...","description":"A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager before 9.1.9 and 8.x before 8.4.19; qemu-server 9.x before 9.1.7 and 8.x before 8.4.7; and pve-container before 6.1.3 (PVE 9.x) and before 5.3.4 (PVE 8.x) allows an attacker with privileges to call \"vncproxy\" to hijack a VNC session that is established in parallel by a different user for a different VM.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00386,"percentile":0.32971,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-362"],"published":"2026-07-17T00:00:00Z","modified":"2026-07-17T18:32:30Z","references":[{"url":"https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/post-849971"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-51082"},{"url":"https://github.com/advisories/GHSA-vjf4-fxgw-f2mh"}],"sources":{"cve":[{"id":"CVE-2026-51082","description":"A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager before 9.1.9 and 8.x before 8.4.19; qemu-server 9.x before 9.1.7 and 8.x before 8.4.7; and pve-container before 6.1.3 (PVE 9.x) and before 5.3.4 (PVE 8.x) allows an attacker with privileges to call \"vncproxy\" to hijack a VNC session that is established in parallel by a different user for a different VM.","status":"published","published":"2026-07-17T00:00:00Z","modified":"2026-07-17T16:44:44.74Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T13:39:39.001586Z"}],"euvd":[{"id":"EUVD-2026-45182","description":"A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager before 9.1.9 and 8.x before 8.4.19; qemu-server 9.x before 9.1.7 and 8.x before 8.4.7; and pve-container before 6.1.3 (PVE 9.x) and before 5.3.4 (PVE 8.x) allows an attacker with privileges to call \"vncproxy\" to hijack a VNC session that is established in parallel by a different user for a different VM.","status":"published","published":"2026-07-17T00:00:00Z","modified":"2026-07-17T16:44:44Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:19:50.451546Z"}],"ghsa":[{"id":"GHSA-vjf4-fxgw-f2mh","title":"A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment ...","description":"A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager 9.1.x before 9.1.9 and 8.4.x before 8.4.19; qemu-server 9.1.x before 9.1.7 and 8.4.x before 8.4.7; and pve-container 6.1.x before 6.1.3 and 5.3.x before 5.3.4 allows an attacker with privileges to call \"vncproxy\" to hijack a VNC session that is established in parallel by a different user for a different VM.","status":"published","published":"2026-07-17T15:32:31Z","modified":"2026-07-17T18:32:30Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T15:09:35.141236Z"}],"nvd":[{"id":"CVE-2026-51082","description":"A race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager before 9.1.9 and 8.x before 8.4.19; qemu-server 9.x before 9.1.7 and 8.x before 8.4.7; and pve-container before 6.1.3 (PVE 9.x) and before 5.3.4 (PVE 8.x) allows an attacker with privileges to call \"vncproxy\" to hijack a VNC session that is established in parallel by a different user for a different VM.","status":"published","published":"2026-07-17T15:16:46.867Z","modified":"2026-07-17T18:28:39.22Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:12:30.250437Z"}]}}