{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33210","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-17T23:23:58.313Z","datePublished":"2026-03-20T22:57:08.758Z","dateUpdated":"2026-06-30T12:07:37.618Z"},"containers":{"cna":{"title":"Ruby JSON has a format string injection vulnerability","problemTypes":[{"descriptions":[{"cweId":"CWE-134","lang":"en","description":"CWE-134: Use of Externally-Controlled Format String","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.3,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/ruby/json/security/advisories/GHSA-3m6g-2423-7cp3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/ruby/json/security/advisories/GHSA-3m6g-2423-7cp3"}],"affected":[{"vendor":"ruby","product":"json","versions":[{"version":">= 2.14.0, < 2.15.2.1","status":"affected"},{"version":">= 2.16.0, < 2.17.1.2","status":"affected"},{"version":">= 2.18.0, < 2.19.2","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-20T22:57:08.758Z"},"descriptions":[{"lang":"en","value":"Ruby JSON is a JSON implementation for Ruby. From version 2.14.0 to before versions 2.15.2.1, 2.17.1.2, and 2.19.2, a format string injection vulnerability can lead to denial of service attacks or information disclosure, when the allow_duplicate_key: false parsing option is used to parse user supplied documents. This issue has been patched in versions 2.15.2.1, 2.17.1.2, and 2.19.2."}],"source":{"advisory":"GHSA-3m6g-2423-7cp3","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-23T21:01:54.342811Z","id":"CVE-2026-33210","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":"2026-03-23T21:41:29.624Z"}},{"affected":[{"cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","product":"Red Hat Enterprise Linux AppStream (v. 10)","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"],"defaultStatus":"affected","product":"Red Hat Enterprise Linux AppStream (v. 9)","vendor":"Red Hat"},{"cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"defaultStatus":"affected","product":"Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)","vendor":"Red Hat"},{"cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:logging:5"],"defaultStatus":"unaffected","product":"Logging Subsystem for Red Hat OpenShift","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:red_hat_3scale_amp:2"],"defaultStatus":"unaffected","product":"Red Hat 3scale API Management Platform 2","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:amq_clients:2023"],"defaultStatus":"unaffected","product":"Red Hat AMQ Clients","vendor":"Red Hat"},{"cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"},{"cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"},{"cpes":["cpe:/a:redhat:enterprise_linux_ai:3"],"defaultStatus":"unaffected","product":"Red Hat Enterprise Linux AI (RHEL AI) 3","vendor":"Red Hat"}],"datePublic":"2026-03-20T22:57:08.758Z","descriptions":[{"lang":"en","value":"A flaw was found in Ruby JSON. This vulnerability, a format string injection, allows a remote attacker to cause a denial of service (DoS) or disclose sensitive information. The flaw occurs when processing specially crafted user-supplied documents with the allow_duplicate_key: false parsing option enabled."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-134","description":"Use of Externally-Controlled Format String","lang":"en","type":"CWE"}]}],"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-33210"},{"name":"RHBZ#2449871","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2449871"},{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33210.json"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:20606"},{"tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:20596"}],"solutions":[{"lang":"en","value":"RHSA-2026:20606: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"},{"lang":"en","value":"RHSA-2026:20596: Red Hat Enterprise Linux AppStream (v. 9)"}],"timeline":[{"lang":"en","time":"2026-03-21T00:01:40.435Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-03-20T22:57:08.758Z","value":"Made public."}],"title":"ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection","x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"},"providerMetadata":{"orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","shortName":"redhat-SADP","dateUpdated":"2026-06-30T12:07:37.618Z"}}]}}