{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-65604", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-22T10:48:36.000Z", "datePublished": "2026-07-23T21:16:47.608Z", "dateUpdated": "2026-10-08T15:23:56.122Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-08T15:23:56.122Z" }, "datePublic": "2026-07-09T00:00:00.000Z", "title": "Skipper Incomplete Fix for CVE-2026-50197 Policy Bypass", "descriptions": [ { "lang": "en", "value": "Skipper contains an incomplete fix for CVE-2026-50197 in which oversized request bodies bypass Open Policy Agent (OPA) deny-on-presence Rego policies. When a request body exceeds the configured maxBodyBytes limit, Skipper forwards the full payload to the upstream service while OPA evaluates against an empty parsed_body, so policies that deny requests based on body content are not enforced and forbidden actions proceed. No fixed version is available; v0.27.26 adds documentation guidance only." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Improper Input Validation", "cweId": "CWE-20", "type": "CWE" } ] } ], "affected": [ { "vendor": "zalando", "product": "skipper", "defaultStatus": "affected", "packageURL": "pkg:golang/github.com/zalando/skipper" } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:zalando:skipper:*:*:*:*:*:*:*:*" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.8, "baseSeverity": "HIGH" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH" } } ], "references": [ { "url": "https://github.com/zalando/skipper/security/advisories/GHSA-8qqm-fp2q-v734", "name": "GitHub Security Advisory (GHSA-8qqm-fp2q-v734)", "tags": [ "vendor-advisory" ] }, { "name": "VulnCheck Advisory: Skipper Incomplete Fix for CVE-2026-50197 Policy Bypass", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/skipper-incomplete-fix-for-cve-2026-50197-policy-bypass" } ], "credits": [ { "lang": "en", "value": "sec-reex", "type": "reporter" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "references": [ { "url": "https://github.com/zalando/skipper/security/advisories/GHSA-8qqm-fp2q-v734", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-24T14:03:58.021319Z", "id": "CVE-2026-65604", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "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": "2026-07-24T14:04:07.992Z" } } ] } }