DOM-based cross-site scripting (XSS) in Cribl Stream before 4.17.1 allows a remote attacker to execute arbitrary JavaScript in the browser of an authenticated user who is tricked into visiting a crafted URL and interacting with the page.
"}]}],"affected":[{"vendor":"Cribl","product":"Cribl Stream","versions":[{"version":"0","status":"affected","lessThan":"4.17.1","versionType":"semver"}],"defaultStatus":"unaffected"}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"impacts":[{"capecId":"CAPEC-588","descriptions":[{"lang":"en","value":"CAPEC-588 DOM-Based XSS"}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"source":{"discovery":"EXTERNAL"},"references":[{"url":"https://docs.cribl.io/stream/release-notes/release-v4171#security-fixes","name":"Cribl Stream 4.17.1 Security Fixes","tags":["release-notes"]},{"url":"https://trust.cribl.io/notifications","name":"Cribl Trust Portal","tags":["vendor-advisory"]}],"solutions":[{"lang":"en","value":"Upgrade Cribl Stream to v4.17.1 or higher. Upgrading fully resolves this vulnerability and no additional mitigation is required. As a defense-in-depth best practice (independent of this CVE), configuring a Content Security Policy header is recommended; see https://docs.cribl.io/stream/securing-sources-dest#csp for non-SSO and https://docs.cribl.io/stream/securing-sources-dest#saml-sso-configuration for SSO deployments.","supportingMedia":[{"type":"text/html","base64":false,"value":"Upgrade Cribl Stream to v4.17.1 or higher. Upgrading fully resolves this vulnerability and no additional mitigation is required.
As a defense-in-depth best practice (independent of this CVE), configuring a Content Security Policy header is recommended; see CSP guidance for non-SSO and SAML SSO configuration for SSO deployments.
"}]}],"credits":[{"lang":"en","type":"finder","value":"Frank Lycops, NATO NCSC"},{"lang":"en","type":"finder","value":"Filip Waeytens, NATO NCSC"}]},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-20","lang":"en","description":"CWE-20 Improper Input Validation"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-15T10:56:43.705190Z","id":"CVE-2026-45392","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-15T10:56:49.136Z"}}]}}