{"schema":"threatline.record/2","record":{"id":"CVE-2026-100705","aliases":["GHSA-q825-p383-r9v5"],"summary":"Kyverno before 1.19.1 SSRF via legacy apiCall service executor","details":"Kyverno before 1.19.1 is vulnerable to server-side request forgery. The default egress blocklist (169.254.169.254, 169.254.169.253, metadata.google.internal, 127.0.0.0/8, ::1/128) and the scoped-token control were wired only into the new CEL http.Get/Post library and were never applied to the legacy apiCall service executor (pkg/engine/apicall/executor.go) or to the GlobalContextEntry external-API path, which handle every non-CEL context[].apiCall.service call. Because these paths use a plain net/http client with no egress filtering and no validation of the configured service URL, a ClusterPolicy or GlobalContextEntry author — or, where a deployed policy templates the service URL from the admission resource, a lower-privileged resource submitter — can cause Kyverno to issue GET/POST requests to an arbitrary host, including the cloud metadata endpoint, loopback, and any in-cluster service, reading cloud instance credentials and reaching internal endpoints with Kyverno's network position. The executor also unconditionally attaches Kyverno's projected ServiceAccount token to the attacker-chosen destination; the token is audience-scoped, limiting its replay value. Fixed in 1.19.1.","categories":["Unclassified"],"product":"kyverno","vendor":"kyverno","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100705","source_modified_at":"2026-09-26T23:10:45.970Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"kyverno","vendor":"kyverno","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"1.19.1"},{"version":"1.19.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100705","source_modified_at":"2026-09-26T23:10:45.970Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"kyverno","ecosystem":null},"version":"1.19.1","basis":"first unaffected version stated in the CVE record"}],"cvss":8.3,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00197,"percentile":0.08879,"score_date":"2026-10-23"},"published_at":"2026-09-26T13:23:59.999Z","modified_at":"2026-09-26T23:10:45.970Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100705","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-26T23:10:45.970Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100705","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-q825-p383-r9v5","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/kyverno-before-1.19.1-ssrf-via-legacy-apicall-service-executor","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-26T23:10:38.587553Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-26T23:10:45.970Z","content_hash":"340d33e4e21f308e501e63f0e36d6e80ba669ceca319477de7617daa15f4fb2b"}}