CVE Explorer

CVE-2026-51082

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a0b6f3462c935284683e537feb7dfd9c96a517026b234ca7fe43bb79c653829b

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-362","description":"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:5bb544e396c7c2666ba82325ce53a2d3d3c42f2b015f4bec58791db77ca7fa29 · sha256:3b5b8ef69711a8da… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:5bb544e396c7c2666ba82325ce53a2d3d3c42f2b015f4bec58791db77ca7fa29 · sha256:3b5b8ef69711a8da… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5bb544e396c7c2666ba82325ce53a2d3d3c42f2b015f4bec58791db77ca7fa29 · sha256:3b5b8ef69711a8da… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:5bb544e396c7c2666ba82325ce53a2d3d3c42f2b015f4bec58791db77ca7fa29 · sha256:3b5b8ef69711a8da… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-362","description":"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:5bb544e396c7c2666ba82325ce53a2d3d3c42f2b015f4bec58791db77ca7fa29 · sha256:3b5b8ef69711a8da… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:5bb544e396c7c2666ba82325ce53a2d3d3c42f2b015f4bec58791db77ca7fa29 · sha256:3b5b8ef69711a8da… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://forum.proxmox.com/threads/proxmox-virtual-environment-security-advisories.149331/post-849971"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5bb544e396c7c2666ba82325ce53a2d3d3c42f2b015f4bec58791db77ca7fa29 · sha256:3b5b8ef69711a8da… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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