{"id":"EUVD-2026-64040","enisaUuid":"e63e5db1-b975-398d-87d0-b63b86ffe7e3","description":"Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the addon and integration subsystem passes the operator-controlled parameters.url value from src/lib/addons/webhook.ts and the Slack, Microsoft Teams, Datadog, and New Relic integrations to Addon.fetchRetry in src/lib/addons/addon.ts without restricting loopback, link-local, private, or cloud metadata addresses. An authenticated actor with the root CREATE_ADDON or UPDATE_ADDON permission can cause the server to send requests from inside its network boundary, use integration event status as a blind probing oracle, forward Authorization, customHeaders, or DD-API-KEY values to an attacker-observed host, and deliver the feature-event JSON body to internal services. This issue is fixed in versions 7.5.2, 7.6.5, and 8.0.2.","datePublished":"Aug 21, 2026, 6:05:20 PM","dateUpdated":"Aug 21, 2026, 7:22:22 PM","baseScore":5.5,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","references":"https://github.com/Unleash/unleash/security/advisories/GHSA-5vf6-jrqr-78fj\nhttps://github.com/Unleash/unleash/commit/2100db76af3473f13e6fb40096cf17a9c2b741a1\nhttps://github.com/Unleash/unleash/commit/d45f99df924c0d24747b3e45e46fcda7dcd3c1c1\nhttps://github.com/Unleash/unleash/commit/d862562a5ab8f2d1e40f6519c64cf0b4fdaf806d\nhttps://github.com/Unleash/unleash/releases/tag/v7.5.2\nhttps://github.com/Unleash/unleash/releases/tag/v7.6.5\nhttps://github.com/Unleash/unleash/releases/tag/v8.0.2\n","aliases":"CVE-2026-63004\nGHSA-5vf6-jrqr-78fj\n","assigner":"GitHub_M","epss":0.39,"enisaIdProduct":[{"id":"7fca14f5-8a5d-32fb-b722-b840f9b6c425","product":{"name":"unleash","vendor":{"name":"Unleash"}},"product_version":"7.6.0, \u003c 7.6.5"},{"id":"c95a3274-3a40-346b-87b2-b252c2bc54c2","product":{"name":"unleash","vendor":{"name":"Unleash"}},"product_version":"8.0.0, \u003c 8.0.2"},{"id":"f302b40f-13a1-3404-acfe-5bedd4215f83","product":{"name":"unleash","vendor":{"name":"Unleash"}},"product_version":"\u003c 7.5.2"}],"enisaIdVendor":[{"id":"9c19edd8-f889-3440-b53c-89a2fb59940b","vendor":{"name":"Unleash"}}],"enisaIdVulnerability":[{"id":"82973606-35fa-3beb-bbdd-1874b3fc2e25","vulnerability":{"id":"GHSA-5vf6-jrqr-78fj","description":"Unleash: Addon webhook URL is dialed server-side with no internal-address filtering, enabling SSRF to internal services / cloud metadata and exfiltration of configured request headers","datePublished":"Aug 21, 2026, 7:14:45 PM","dateUpdated":"Aug 21, 2026, 7:14:45 PM","baseScore":0.0,"references":"https://github.com/Unleash/unleash/security/advisories/GHSA-5vf6-jrqr-78fj\nhttps://github.com/Unleash/unleash/commit/2100db76af3473f13e6fb40096cf17a9c2b741a1\nhttps://github.com/Unleash/unleash/commit/d45f99df924c0d24747b3e45e46fcda7dcd3c1c1\nhttps://github.com/Unleash/unleash/commit/d862562a5ab8f2d1e40f6519c64cf0b4fdaf806d\nhttps://github.com/Unleash/unleash\nhttps://github.com/Unleash/unleash/releases/tag/v7.5.2\nhttps://github.com/Unleash/unleash/releases/tag/v7.6.5\nhttps://github.com/Unleash/unleash/releases/tag/v8.0.2\n","enisa_id":"EUVD-2026-64040\n","aliases":"GHSA-5vf6-jrqr-78fj\nCVE-2026-63004\n","epss":0.0,"dataProcessed":"Oct 25, 2026, 1:59:46 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"b7441693-a58d-331b-94d8-a915b38d88b7","vulnerability":{"id":"CVE-2026-63004","description":"Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the addon and integration subsystem passes the operator-controlled parameters.url value from src/lib/addons/webhook.ts and the Slack, Microsoft Teams, Datadog, and New Relic integrations to Addon.fetchRetry in src/lib/addons/addon.ts without restricting loopback, link-local, private, or cloud metadata addresses. An authenticated actor with the root CREATE_ADDON or UPDATE_ADDON permission can cause the server to send requests from inside its network boundary, use integration event status as a blind probing oracle, forward Authorization, customHeaders, or DD-API-KEY values to an attacker-observed host, and deliver the feature-event JSON body to internal services. This issue is fixed in versions 7.5.2, 7.6.5, and 8.0.2.","datePublished":"Aug 21, 2026, 6:05:20 PM","dateUpdated":"Aug 21, 2026, 7:22:22 PM","status":"PUBLISHED","baseScore":5.5,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","references":"https://github.com/Unleash/unleash/security/advisories/GHSA-5vf6-jrqr-78fj\nhttps://github.com/Unleash/unleash/commit/2100db76af3473f13e6fb40096cf17a9c2b741a1\nhttps://github.com/Unleash/unleash/commit/d45f99df924c0d24747b3e45e46fcda7dcd3c1c1\nhttps://github.com/Unleash/unleash/commit/d862562a5ab8f2d1e40f6519c64cf0b4fdaf806d\nhttps://github.com/Unleash/unleash/releases/tag/v7.5.2\nhttps://github.com/Unleash/unleash/releases/tag/v7.6.5\nhttps://github.com/Unleash/unleash/releases/tag/v8.0.2\n","enisa_id":"EUVD-2026-64040\n","assigner":"GitHub_M","epss":0.39,"dataProcessed":"Oct 28, 2026, 7:15:21 AM","vulnerabilityProduct":[{"id":"5a2624da-6a64-3de4-a7bc-126c39b5c1d5","product":{"name":"unleash","vendor":{"name":"Unleash"}},"product_version":"7.6.0, \u003c 7.6.5"},{"id":"5b7be0a9-e27c-3a7c-9c96-a488c2ff409a","product":{"name":"unleash","vendor":{"name":"Unleash"}},"product_version":"\u003c 7.5.2"},{"id":"d3241a4c-1c7a-32da-b36c-a9b27953ed2e","product":{"name":"unleash","vendor":{"name":"Unleash"}},"product_version":"8.0.0, \u003c 8.0.2"}],"vulnerabilityVendor":[{"id":"e3c917e5-7e3f-3f2e-a589-615b301df39c","vendor":{"name":"Unleash"}}]}}],"enisaIdAdvisory":[]}