{"id":"CVE-2026-86836","state":"PUBLISHED","title":"In Eclipse Ankaios versions 0.1.0 through 1.0.2, the agent creates workload files and Control Interface named pipes (FIFOs) under a predictable path derived from the agent name and","description":"In Eclipse Ankaios versions 0.1.0 through 1.0.2, the agent creates workload files and Control Interface named pipes (FIFOs) under a predictable path derived from the agent name and a hash of the workload's runtime configuration. If a directory or FIFO already exists at that path when the agent (re)starts, the agent reuses it based only on an existence and/or file-type check, without validating its owner or permissions. A local, unprivileged user with write access to the same base directory (by default under `$TMPDIR/ankaios`, e.g. shared `/tmp`) can pre-create this path hierarchy, including the two Control Interface FIFOs, before the agent starts. The agent then treats the attacker-owned FIFOs as the legitimate Control Interface for the targeted workload. The attacker can complete the Control Interface handshake and issue requests using that workload's configured `controlInterfaceAccess` permissions, allowing impersonation of the workload and, depending on its configured permissions, unauthorized reading and/or modification of the cluster's desired state.","publishedAt":"2026-09-14T17:44:56.384Z","updatedAt":"2026-09-15T08:18:26.215Z","severity":{"score":8.4,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:H","source":"eclipse"},"assigner":"eclipse","products":["Eclipse Foundation Eclipse Ankaios"],"affected":[{"vendor":"Eclipse Foundation","product":"Eclipse Ankaios","defaultStatus":"unaffected","versions":[{"version":"0.1.0","status":"affected","lessThanOrEqual":"1.0.2","versionType":"semver"}]}],"references":["https://gitlab.eclipse.org/security/cve-assignment/-/work_items/280","https://github.com/eclipse-ankaios/ankaios/pull/799","https://github.com/eclipse-ankaios/ankaios/releases/tag/v1.0.3"],"weaknesses":["CWE-379","CWE-276","CWE-367"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86836.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86836","state":"PUBLISHED","datePublished":"2026-09-14T17:44:56.384Z","dateUpdated":"2026-09-15T08:18:26.215Z","assignerShortName":"eclipse","assignerOrgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","dateReserved":"2026-09-08T14:40:05.969Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In Eclipse Ankaios versions 0.1.0 through 1.0.2, the agent creates workload files and Control Interface named pipes (FIFOs) under a predictable path derived from the agent name and a hash of the workload's runtime configuration. If a directory or FIFO already exists at that path when the agent (re)starts, the agent reuses it based only on an existence and/or file-type check, without validating its owner or permissions. A local, unprivileged user with write access to the same base directory (by default under `$TMPDIR/ankaios`, e.g. shared `/tmp`) can pre-create this path hierarchy, including the two Control Interface FIFOs, before the agent starts. The agent then treats the attacker-owned FIFOs as the legitimate Control Interface for the targeted workload. The attacker can complete the Control Interface handshake and issue requests using that workload's configured `controlInterfaceAccess` permissions, allowing impersonation of the workload and, depending on its configured permissions, unauthorized reading and/or modification of the cluster's desired state."}],"affected":[{"vendor":"Eclipse Foundation","product":"Eclipse Ankaios","defaultStatus":"unaffected","versions":[{"version":"0.1.0","status":"affected","lessThanOrEqual":"1.0.2","versionType":"semver"}]}],"references":[{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/280"},{"url":"https://github.com/eclipse-ankaios/ankaios/pull/799"},{"url":"https://github.com/eclipse-ankaios/ankaios/releases/tag/v1.0.3"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"HIGH","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.4,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-379","lang":"en","description":"CWE-379","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-276","lang":"en","description":"CWE-276","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-367","lang":"en","description":"CWE-367","type":"CWE"}]}],"providerMetadata":{"shortName":"eclipse","orgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","dateUpdated":"2026-09-15T08:18:26.215Z"},"impacts":[{"capecId":"CAPEC-149","descriptions":[{"lang":"en","value":"CAPEC-149"}]}],"credits":[{"lang":"en","value":"https://gitlab.eclipse.org/krusev","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-14T18:00:13.648615Z","id":"CVE-2026-86836","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-14T18:00:25.088Z"}}]}}}