{"id":"CVE-2026-23822","state":"PUBLISHED","title":"Unauthenticated XML External Entity Injection in AOS-8 Instant allows Denial of Service","description":"A vulnerability in the XML handling component of AOS-8 DHCP services could allow an unauthenticated remote attacker to trigger a denial-of-service condition. Successful exploitation could allow an attacker to cause excessive resource consumption upon user interaction, leading to service disruption or reduced availability of the affected system.\n\n\n\n\n\n\n\n\nNOTE: This vulnerability only impacts Access Points running AOS Instant 8.x.x.x","publishedAt":"2026-05-12T18:37:08.787Z","updatedAt":"2026-05-12T19:25:55.101Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","source":"hpe"},"assigner":"hpe","products":["Hewlett Packard Enterprise (HPE) ArubaOS (AOS)"],"affected":[{"vendor":"Hewlett Packard Enterprise (HPE)","product":"ArubaOS (AOS)","defaultStatus":"affected","versions":[{"version":"8.13.0.0","status":"affected","lessThanOrEqual":"8.13.1.1","versionType":"semver"},{"version":"8.12.0.0","status":"affected","lessThanOrEqual":"8.12.0.6","versionType":"semver"},{"version":"8.10.0.0","status":"affected","lessThanOrEqual":"8.10.0.21","versionType":"semver"}]}],"references":["https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05049en_us&docLocale=en_US"],"weaknesses":["CWE-776"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23822.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23822","state":"PUBLISHED","datePublished":"2026-05-12T18:37:08.787Z","dateUpdated":"2026-05-12T19:25:55.101Z","assignerShortName":"hpe","assignerOrgId":"eb103674-0d28-4225-80f8-39fb86215de0","dateReserved":"2026-01-16T15:22:49.224Z"},"containers":{"cna":{"title":"Unauthenticated XML External Entity Injection in AOS-8 Instant allows Denial of Service","descriptions":[{"lang":"en","value":"A vulnerability in the XML handling component of AOS-8 DHCP services could allow an unauthenticated remote attacker to trigger a denial-of-service condition. Successful exploitation could allow an attacker to cause excessive resource consumption upon user interaction, leading to service disruption or reduced availability of the affected system.\n\n\n\n\n\n\n\n\nNOTE: This vulnerability only impacts Access Points running AOS Instant 8.x.x.x"}],"affected":[{"vendor":"Hewlett Packard Enterprise (HPE)","product":"ArubaOS (AOS)","defaultStatus":"affected","versions":[{"version":"8.13.0.0","status":"affected","lessThanOrEqual":"8.13.1.1","versionType":"semver"},{"version":"8.12.0.0","status":"affected","lessThanOrEqual":"8.12.0.6","versionType":"semver"},{"version":"8.10.0.0","status":"affected","lessThanOrEqual":"8.10.0.21","versionType":"semver"}]}],"references":[{"url":"https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05049en_us&docLocale=en_US"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H"}}],"providerMetadata":{"shortName":"hpe","orgId":"eb103674-0d28-4225-80f8-39fb86215de0","dateUpdated":"2026-05-12T18:37:08.787Z"},"credits":[{"lang":"en","value":"Nicholas Starke","type":"reporter"}],"source":{"advisory":"HPESBNW05049","discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-12T19:25:52.086668Z","id":"CVE-2026-23822","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-776","type":"CWE","lang":"en","description":"CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-12T19:25:55.101Z"}}]}}}