{"id":"CVE-2021-22563","aliases":["EUVD-2021-9703","GHSA-q2wp-4p9r-fg6g"],"status":"published","title":"Memory Overread in libjxl","description":"Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector\u003cstd::vector\u003cT\u003e\u003e when rendering splines. The OOB read access can either lead to a segfault, or rendering splines based on other process memory. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/757","severity":{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00311,"percentile":0.24168,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-126"],"published":"2021-11-01T13:10:13Z","modified":"2026-10-20T10:54:31Z","products":[{"vendor":"google","product":"libjxl"},{"vendor":"google llc","product":"libjxl"},{"vendor":"libjxl_project","product":"libjxl"}],"references":[{"url":"https://github.com/libjxl/libjxl/issues/735","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/libjxl/libjxl/pull/757","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22563"},{"url":"https://github.com/advisories/GHSA-q2wp-4p9r-fg6g"}],"sources":{"cve":[{"id":"CVE-2021-22563","title":"Memory Overread in libjxl","description":"Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector\u003cstd::vector\u003cT\u003e\u003e when rendering splines. The OOB read access can either lead to a segfault, or rendering splines based on other process memory. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/757","status":"published","published":"2021-11-01T13:10:13.942Z","modified":"2024-09-17T02:10:45.898Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9703","description":"Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector\u003cstd::vector\u003cT\u003e\u003e when rendering splines. The OOB read access can either lead to a segfault, or rendering splines based on other process memory. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/757","status":"published","published":"2021-11-01T13:10:13Z","modified":"2024-09-17T02:10:45Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T00:28:43.354671Z"}],"ghsa":[{"id":"GHSA-q2wp-4p9r-fg6g","title":"Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector\u003cstd:...","description":"Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector\u003cstd::vector\u003cT\u003e\u003e when rendering splines. The OOB read access can either lead to a segfault, or rendering splines based on other process memory. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/757","status":"published","published":"2022-05-24T19:19:16Z","modified":"2023-01-30T05:03:14Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:46:47.986344Z"}],"nvd":[{"id":"CVE-2021-22563","description":"Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector\u003cstd::vector\u003cT\u003e\u003e when rendering splines. The OOB read access can either lead to a segfault, or rendering splines based on other process memory. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/757","status":"published","published":"2021-11-01T13:15:07.657Z","modified":"2026-06-17T03:37:25.953Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":3.6,"vector":"AV:L/AC:L/Au:N/C:N/I:P/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-126","CWE-125"],"updated_at":"2026-11-02T14:07:00.549994Z"}],"osv":[{"id":"CVE-2021-22563","description":"Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector\u003cstd::vector\u003cT\u003e\u003e when rendering splines. The OOB read access can either lead to a segfault, or rendering splines based on other process memory. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/757","status":"published","published":"2021-11-01T13:15:07.657Z","modified":"2026-10-20T10:54:31.074155823Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:18.367807Z"}]}}