179 lines
8.0 KiB
JSON
179 lines
8.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-100705",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-09-26T02:39:50.973Z",
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"datePublished": "2026-09-26T13:23:59.999Z",
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"dateUpdated": "2026-09-26T23:10:45.970Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-09-26T13:23:59.999Z"
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},
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"datePublic": "2026-09-10T00:00:00.000Z",
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"title": "Kyverno before 1.19.1 SSRF via legacy apiCall service executor",
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"descriptions": [
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{
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"lang": "en",
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"value": "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."
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Server-Side Request Forgery (SSRF)",
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"cweId": "CWE-918",
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"type": "CWE"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "kyverno",
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"product": "kyverno",
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"defaultStatus": "unaffected",
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"packageURL": "pkg:golang/github.com/kyverno/kyverno",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "1.19.1"
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},
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{
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"version": "1.19.1",
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"status": "unaffected",
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"versionType": "semver"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "1.19.1"
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}
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]
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}
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "HIGH",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "HIGH",
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"subIntegrityImpact": "LOW",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.3,
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"baseSeverity": "HIGH"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "HIGH",
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"userInteraction": "NONE",
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"scope": "CHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "LOW",
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"availabilityImpact": "NONE",
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"baseScore": 7.6,
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"baseSeverity": "HIGH"
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}
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}
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],
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"references": [
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{
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"url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-q825-p383-r9v5",
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"tags": [
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"vendor-advisory"
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],
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"name": "GitHub Security Advisory (GHSA-q825-p383-r9v5)"
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},
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{
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"name": "VulnCheck Advisory: Kyverno before 1.19.1 SSRF via legacy apiCall service executor",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/kyverno-before-1.19.1-ssrf-via-legacy-apicall-service-executor"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "ttzero25",
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"type": "reporter"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-09-26T23:10:38.587553Z",
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"id": "CVE-2026-100705",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-09-26T23:10:45.970Z"
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}
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}
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]
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}
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} |