{"schemaVersion":3,"id":"CVE-2026-93450","aliases":["RHSA-2026:72488"],"status":"published","duplicateOf":null,"title":null,"description":"go-openapi/swag jsonutils before 0.27.1 contains a stack overflow vulnerability in ordered JSON parsing and serialization due to unbounded recursion with no depth limit. Remote unauthenticated attackers can submit deeply nested JSON documents to services accepting OpenAPI specifications, causing fatal stack overflow that terminates the process and all in-flight requests.","dates":{"published":"2026-09-17T23:25:10.883Z","modified":"2026-09-18T12:58:44.088Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.7,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.7,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":10,"impact":6,"computed":true}]},"epss":{"probability":0.00917,"percentile":0.5959,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.25399999999999995,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00663},"history":[{"date":"2026-09-18T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00917,"percentile":0.5959}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00663,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00917,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00917,"percentile":0.5959}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-674","name":"Uncontrolled Recursion","description":"The product does not properly control the amount of recursion that takes place,  consuming excessive resources, such as allocated memory or the program stack.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/674.html"}],"affected":[{"vendor":"go-openapi","product":"swag","name":"swag","label":"swag","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 0.27.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.27.1","eol":null,"hubHref":"/vendor/go-openapi/swag"},{"vendor":"redhat","product":"cosign","name":"cosign","label":"cosign","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/cosign","purlType":"rpm","versions":[{"text":"< 0:3.1.3-0.2.hum1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:3.1.3-0.2.hum1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/go-openapi/swag/security/advisories/GHSA-xh24-9qpg-8w28","label":"github.com/go-openapi/swag/security/advisories/GHSA-xh24-9qpg-8w28","hostname":"github.com","tags":["Vendor Advisory","ARTICLE"]},{"url":"https://github.com/go-openapi/swag/commit/0c24346ced59a25811e8694a915e7131d25ccb0e","label":"github.com/go-openapi/swag/commit/0c24346ced59a25811e8694a915e7131d25ccb0e","hostname":"github.com","tags":["Patch","ARTICLE"]},{"url":"https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/adapter.go#L68","label":"github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/adapter.go","hostname":"github.com","tags":["Technical Description","ARTICLE"]},{"url":"https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/ordered_map.go#L214","label":"github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/ordered_map.go","hostname":"github.com","tags":["Technical Description","ARTICLE"]},{"url":"https://github.com/go-openapi/swag","label":"github.com/go-openapi/swag","hostname":"github.com","tags":["Product","ARTICLE"]},{"url":"https://www.vulncheck.com/advisories/go-openapi-swag-jsonutils-before-0.27.1-uncontrolled-recursion-in-ordered-json-marshal-and-unmarshal","label":"www.vulncheck.com/advisories/…","hostname":"www.vulncheck.com","tags":["Third Party Advisory","ARTICLE"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93450","label":"nvd.nist.gov/vuln/detail/CVE-2026-93450","hostname":"nvd.nist.gov","tags":["Oval","Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:72488","label":"access.redhat.com/errata/RHSA-2026:72488","hostname":"access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-93450","label":"access.redhat.com/security/cve/CVE-2026-93450","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://access.redhat.com/security/updates/classification/","label":"access.redhat.com/security/updates/classification/","hostname":"access.redhat.com","tags":["ARTICLE"]},{"url":"https://images.redhat.com/","label":"images.redhat.com","hostname":"images.redhat.com","tags":["ARTICLE"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_72488.json","label":"security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_72488.json","hostname":"security.access.redhat.com","tags":["Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2538979","label":"bugzilla.redhat.com/show_bug.cgi?id=2538979","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93450","label":"www.cve.org/CVERecord?id=CVE-2026-93450","hostname":"www.cve.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["CVE-2024-24786","CVE-2026-102422","CVE-2026-63209","RHSA-2026:68272","RHSA-2026:68290","RHSA-2026:68591","RHSA-2026:68717","RHSA-2026:68729","RHSA-2026:71906","RHSA-2026:72492","RHSA-2026:72497","RHSA-2026:72498","RHSA-2026:72507","RHSA-2026:72570","RHSA-2026:74871","RHSA-2026:85266"],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-09-17T23:25:10.883Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-18T12:58:44.088Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":35,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T02:18:07.188Z","stale":false,"partial":false}}