{"id":"CVE-2026-86836","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 a hash of the workload's runtime configuration","summary":"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 dir…","severity":"high","cvss":8.4,"cvssVector":"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","cwe":["CWE-276","CWE-367","CWE-379"],"vendor":"Eclipse Foundation","product":"Eclipse Ankaios","affected":["eclipse_ankaios >= 0.1.0 <= 1.0.2"],"published":"2026-09-14","updated":"2026-09-16","sourceUpdated":"2026-09-16T20:38:33.883","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86836","references":[{"url":"https://github.com/eclipse-ankaios/ankaios/pull/799","label":"emo@eclipse.org"},{"url":"https://github.com/eclipse-ankaios/ankaios/releases/tag/v1.0.3","label":"emo@eclipse.org"},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/280","label":"emo@eclipse.org"}],"tags":["nvd","cve.org"],"epss":0.00086,"epssPercentile":0.00398,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-14T18:00:13.648615Z"},"cvssSource":"cna","ingestedAt":"2026-09-14T19:13:23.461Z","slug":"CVE-2026-86836","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":46.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}