{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52834", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-08T18:11:06.663Z", "datePublished": "2026-08-19T14:55:32.138Z", "dateUpdated": "2026-08-19T14:55:32.138Z"}, "containers": {"cna": {"title": "jxl-oxide: Out-of-bounds writes due to integer overflow in jxl-grid on 32-bit platforms", "problemTypes": [{"descriptions": [{"cweId": "CWE-122", "lang": "en", "description": "CWE-122: Heap-based Buffer Overflow", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-131", "lang": "en", "description": "CWE-131: Incorrect Calculation of Buffer Size", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-190", "lang": "en", "description": "CWE-190: Integer Overflow or Wraparound", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-5pmv-rx8r-wmv5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-5pmv-rx8r-wmv5"}, {"name": "https://github.com/tirr-c/jxl-oxide/commit/3986dadd3926a95656a642e74a0702d52f5c92e2", "tags": ["x_refsource_MISC"], "url": "https://github.com/tirr-c/jxl-oxide/commit/3986dadd3926a95656a642e74a0702d52f5c92e2"}, {"name": "https://github.com/tirr-c/jxl-oxide/releases/tag/0.12.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/tirr-c/jxl-oxide/releases/tag/0.12.6"}, {"name": "https://rustsec.org/advisories/RUSTSEC-2026-0151.html", "tags": ["x_refsource_MISC"], "url": "https://rustsec.org/advisories/RUSTSEC-2026-0151.html"}], "affected": [{"vendor": "tirr-c", "product": "jxl-oxide", "versions": [{"version": "< 0.12.6", "status": "affected"}]}, {"vendor": "tirr-c", "product": "jxl-grid", "versions": [{"version": "< 0.6.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T14:55:32.138Z"}, "descriptions": [{"lang": "en", "value": "jxl-oxide is a pure Rust implementation of a JPEG XL decoder. Prior to jxl-grid 0.6.2, decoding a crafted JPEG XL image on a 32-bit platform can overflow length calculations in AlignedGrid::with_alloc_tracker and related grid and subgrid arithmetic. A 65536 x 65536 frame can pass the frame-area limit while overflowing the usize element count, causing modular, VarDCT, or filter rendering paths to allocate a backing buffer smaller than the logical grid. A tiny bitstream-controlled cropped frame combined with a huge canvas or requested region can also reach the vulnerable composition path in crates/jxl-render/src/blend.rs through ordinary render_frame(). Later mutable subgrid and raw-pointer operations can then perform attacker-controlled out-of-bounds writes, causing memory corruption, denial of service, or arbitrary code execution. This issue is fixed in jxl-grid version 0.6.2."}], "source": {"advisory": "GHSA-5pmv-rx8r-wmv5", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "jxl-oxide", "vendor": "tirr-c", "versions": [{"status": "affected", "version": "< 0.12.6"}]}, {"product": "jxl-grid", "vendor": "tirr-c", "versions": [{"status": "affected", "version": "< 0.6.2"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "jxl-oxide is a pure Rust implementation of a JPEG XL decoder. Prior to jxl-grid 0.6.2, decoding a crafted JPEG XL image on a 32-bit platform can overflow length calculations in AlignedGrid::with_alloc_tracker and related grid and subgrid arithmetic. A 65536 x 65536 frame can pass the frame-area limit while overflowing the usize element count, causing modular, VarDCT, or filter rendering paths to allocate a backing buffer smaller than the logical grid. A tiny bitstream-controlled cropped frame combined with a huge canvas or requested region can also reach the vulnerable composition path in crates/jxl-render/src/blend.rs through ordinary render_frame(). Later mutable subgrid and raw-pointer operations can then perform attacker-controlled out-of-bounds writes, causing memory corruption, denial of service, or arbitrary code execution. This issue is fixed in jxl-grid version 0.6.2."}], "id": "CVE-2026-52834", "lastModified": "2026-08-19T15:17:09.810", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 1.4, "impactScore": 5.3, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-08-19T15:17:09.810", "references": [{"source": "[email protected]", "url": "https://github.com/tirr-c/jxl-oxide/commit/3986dadd3926a95656a642e74a0702d52f5c92e2"}, {"source": "[email protected]", "url": "https://github.com/tirr-c/jxl-oxide/releases/tag/0.12.6"}, {"source": "[email protected]", "url": "https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-5pmv-rx8r-wmv5"}, {"source": "[email protected]", "url": "https://rustsec.org/advisories/RUSTSEC-2026-0151.html"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}, {"lang": "en", "value": "CWE-131"}, {"lang": "en", "value": "CWE-190"}], "source": "[email protected]", "type": "Primary"}]}

{}

{}