{"id":"CVE-2026-66256","title":"** UNSUPPORTED WHEN ASSIGNED ** Deserialization of Untrusted Data vulnerability in Apache Shindig.\n\nThis issue affects Apache Shindig: all versions.\n\nUsers with access to the Shindig REST API can send specially-crafted requests to trigge…","summary":"** UNSUPPORTED WHEN ASSIGNED ** Deserialization of Untrusted Data vulnerability in Apache Shindig.\n\nThis issue affects Apache Shindig: all versions.\n\nUsers with access to the Shindig REST API can send specially-crafted requests to trigge…","severity":"high","cvss":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"apache","product":"shindig","affected":["shindig <= 3.0.0"],"published":"2026-08-13","updated":"2026-09-11","sourceUpdated":"2026-09-11T13:53:49.327","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-66256","references":[{"url":"https://lists.apache.org/thread/opgpnhk149614gx6vcy3lvyjnycw8mkh","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/08/13/7","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-13T15:53:08.626107Z"},"ingestedAt":"2026-09-13T16:08:42.541Z","epss":0.00705,"epssPercentile":0.51939,"slug":"CVE-2026-66256","body":"## Overview\n\n** UNSUPPORTED WHEN ASSIGNED ** Deserialization of Untrusted Data vulnerability in Apache Shindig.\n\nThis issue affects Apache Shindig: all versions.\n\nUsers with access to the Shindig REST API can send specially-crafted requests to trigger arbitrary code execution on the server.\n\nAs this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users.\n\nNOTE: This vulnerability only affects products that are no longer supported by the maintainer.\n\n## Affected\n\n- `shindig <= 3.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":39.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}