CVE-2026-89059

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A remote, unauthenticated attacker can send a small crafted image declaring enormous dimensions to trigger a very large memory allocation, exhausting the JVM heap and resulting in a denial of service."}], "id": "CVE-2026-89059", "lastModified": "2026-11-11T13:17:32.590", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-89059", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-18T15:13:24.737882Z", "version": "2.0.3"}}]}, "published": "2026-09-18T08:17:01.783", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83082"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83520"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:83670"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:85234"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:92408"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:95221"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:95466"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:95504"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:95505"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:95887"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:96077"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:98494"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:98606"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-89059"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519756"}, {"source": "secalert@redhat.com", "url": "https://github.com/resteasy/resteasy/commit/7c7e6b37c8b2451a37aed9cdc6978b447456bacb"}, {"source": "secalert@redhat.com", "url": "https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519756"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/resteasy/resteasy/security/advisories/GHSA-m4pc-7gc7-9vw2"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-409"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Yu Bao (PayPal Cyber Security Team) for reporting this issue.", "bugzilla": {"description": "resteasy-core: RESTEasy: IIOImageProvider Unbounded Image Decode (Decompression-Bomb DoS)", "id": "2519756", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519756"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-409", "details": ["A flaw was found in RESTEasy's IIOImageProvider, which decodes attacker-supplied image request bodies without enforcing any limit on the declared image dimensions or pixel count. 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