{"id":"CVE-2026-77426","title":"Unleash is an open-source feature management platform","summary":"Unleash is an open-source feature management platform. Prior to 8.0.3, the Unleash admin API contains five authorization vulnerabilities. POST /api/admin/segments/strategies assigns the Promise returned by hasPermission without awaiting …","severity":"high","cvss":7.1,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-639","CWE-862"],"vendor":"Unleash","product":"unleash","affected":["unleash < 8.0.3"],"patched":["unleash-server 8.0.3"],"published":"2026-09-22","updated":"2026-09-23","sourceUpdated":"2026-09-23T18:12:04.247","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77426","references":[{"url":"https://github.com/Unleash/unleash/commit/7bb2829fc40791aa478e8ffca149c11b0f9cb05a","label":"security-advisories@github.com"},{"url":"https://github.com/Unleash/unleash/commit/ace121c922d2e3eb6f68d95b0b6ab2fc8d824ea1","label":"security-advisories@github.com"},{"url":"https://github.com/Unleash/unleash/commit/bea7effd3687425630423f662136d548e100154d","label":"security-advisories@github.com"},{"url":"https://github.com/Unleash/unleash/commit/c93a963e95e1b7bf1bca2a7729282a48d0eb2f6a","label":"security-advisories@github.com"},{"url":"https://github.com/Unleash/unleash/commit/dd61d0e10f5977a2e5de78df467c3a17c09fbcef","label":"security-advisories@github.com"},{"url":"https://github.com/Unleash/unleash/releases/tag/v8.0.3","label":"security-advisories@github.com"},{"url":"https://github.com/Unleash/unleash/security/advisories/GHSA-72h8-wp98-7hch","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-72h8-wp98-7hch"}],"tags":["nvd","cve.org","ghsa","npm"],"epss":0.00484,"epssPercentile":0.40815,"aliases":["GHSA-72h8-wp98-7hch"],"ecosystem":"npm","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-23T15:06:51.257660Z"},"cvssSource":"cna","ingestedAt":"2026-09-22T21:11:40.318Z","slug":"CVE-2026-77426","body":"## Overview\n\nUnleash is an open-source feature management platform. Prior to 8.0.3, the Unleash admin API contains five authorization vulnerabilities. POST /api/admin/segments/strategies assigns the Promise returned by hasPermission without awaiting it, allowing authenticated users to modify segment assignments without UPDATE_FEATURE_STRATEGY permission for the target project and environment. GET /api/admin/projects/:projectId/features/:featureName/environments/:environment/variants does not bind the requested feature to projectId, allowing cross-project variant configuration disclosure. GET .../strategies/:strategyId uses strategyId without validating the project and feature context, allowing cross-project strategy configuration disclosure. getEnvironmentInfo does not validate that the requested feature belongs to the supplied project, allowing cross-project environment information disclosure. PUT /:projectId/tags accepts feature identifiers without verifying that they belong to the URL project, allowing cross-project tag modification. This issue is fixed in version 8.0.3.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-77426)\n\nAffected packages:\n\n- `unleash-server < 8.0.3`\n\nPatched in:\n\n- `unleash-server 8.0.3`\n\nSource: https://github.com/advisories/GHSA-72h8-wp98-7hch","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}