{"apiVersion":"1.0","identifier":"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.","publishedAt":"2026-08-21T19:17:30","lastModifiedAt":"2026-08-21T20:16:38","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-63004","cvssScore":5.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","epssProbability":0.00275,"riskScore":0.56,"affectedProduct":"Unleash","affectedVersions":"<7.5.2, <7.6.5, <8.0.2","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-63004","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-63004","en":"https://www.redsauce.net/en/cves/CVE-2026-63004","fr":"https://www.redsauce.net/fr/cves/CVE-2026-63004","pt":"https://www.redsauce.net/pt/cves/CVE-2026-63004","de":"https://www.redsauce.net/de/cves/CVE-2026-63004","sk":"https://www.redsauce.net/sk/cves/CVE-2026-63004","el":"https://www.redsauce.net/el/cves/CVE-2026-63004"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-63004"}}