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{"bugzilla": {"description": "OpenEXR: OpenEXR: Denial of Service due to signed integer overflow in image decoding", "id": "2455384", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455384"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-190", "details": ["A flaw was found in OpenEXR, an image storage format library. A remote attacker could exploit a signed integer overflow vulnerability in the `undo_pxr24_impl()` function when processing a specially crafted EXR image file. This overflow can cause the application to write pixel data beyond its allocated memory buffer, leading to a buffer overflow. The primary consequence of this vulnerability is a denial of service, which could make the application unavailable."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2026-34380", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "openexr", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "OpenEXR", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "OpenEXR", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "OpenEXR", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "openexr", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-06T15:22:40Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-34380\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-34380\nhttps://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-q3v8-hw4m-59w5"], "threat_severity": "Moderate"}