{"containers":{"cna":{"affected":[{"product":"XenServer","vendor":"Cloud Software Group","versions":[{"status":"affected","version":"all","versionType":"custom"}]},{"product":"XCP-ng","vendor":"Vates","versions":[{"status":"affected","version":"all","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","value":"Jakob Wolffhechel, Moksha"}],"descriptions":[{"lang":"en","value":"On XAPI-based hypervisors (XenServer, XCP-ng), arbitrary keys in VIF.other_config become visible to the guest VM via xenstore when the VIF is backed by an SR-IOV virtual function. The standard VIF path applies a 7-key whitelist filter (device.ml:827-829); the SR-IOV path (device.ml:978-1006) omits this filter entirely. Unfiltered keys are written to a guest-readable xenstore path (rwperm_for_guest). Infrastructure metadata written to other_config by administrators or automation tools is exposed to the guest, violating the assumption that other_config is host-internal."}],"metrics":[{"cvssV3_1":{"baseScore":5.0,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"format":"CVSS"},{"cvssV4_0":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","description":"Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-862","description":"Missing Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-24T06:00:00Z","orgId":"moksha.dk","shortName":"Moksha"},"references":[{"url":"https://cna.moksha.dk/MOKSHA-2026-0070"}],"title":"Infrastructure Metadata Leak via SR-IOV VIF Xenstore Passthrough"}},"cveMetadata":{"alternateIds":["GCVE-117-2026-0070"],"assignerOrgId":"moksha.dk","cveId":"MOKSHA-2026-0070","datePublished":"2026-04-24T06:00:00Z","state":"PUBLISHED","x_moksha_note":"Self-issued advisory. MOKSHA-2026-NNNN is not a MITRE CVE ID. Schema follows CVE JSON 5.1 for tooling compatibility. alternateIds contains GCVE cross-references (GNA #117) and will also carry MITRE CVE IDs if assigned."},"dataType":"CVE_RECORD","dataVersion":"5.1","vulnerability-lookup:id":"moksha-2026-0070","vulnerability-lookup:score":1777010400.0}