{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.12.6"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3986dadd3926a95656a642e74a0702d52f5c92e2"
            },
            {
              "fixed": "f8ae722ef2d6b782941c89517d19cfbf605c4a9d"
            }
          ],
          "repo": "https://github.com/tirr-c/jxl-oxide",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5pmv-rx8r-wmv5"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-122",
      "CWE-131",
      "CWE-190"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52834.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "0.6.2"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "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",
  "modified": "2026-09-20T11:30:14.406082734Z",
  "published": "2026-08-19T14:55:32.138Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/tirr-c/jxl-oxide/releases/tag/0.12.6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52834.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-5pmv-rx8r-wmv5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52834"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0151.html"
    },
    {
      "type": "FIX",
      "url": "https://github.com/tirr-c/jxl-oxide/commit/3986dadd3926a95656a642e74a0702d52f5c92e2"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jxl-oxide: Out-of-bounds writes due to integer overflow in jxl-grid on 32-bit platforms"
}