{"id":"CVE-2026-55211","aliases":["EUVD-2026-78671","GHSA-rcr2-hggw-43wm","PYSEC-2026-3701"],"status":"published","title":"surfio IRAP header size fields cause out-of-bounds reads","description":"Surfio is a library for reading and writing surface files. Prior to 0.0.19, surfio does not correctly validate size fields in IRAP files, leading to a buffer overflow when untrusted files are parsed. The severity assumes surfio is used to parse untrusted files in a networking context such as a web service. This issue is fixed in version 0.0.19.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00744,"percentile":0.55017,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2026-08-18T20:12:55Z","modified":"2026-10-28T11:14:49Z","fixes":[{"ecosystem":"PyPI","package":"surfio","fixed_in":["0.0.19"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"surfio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.19"}]}]},{"source":"osv","ecosystem":"PyPI","package":"surfio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.19"}]}],"versions":["0.0.0","0.0.10","0.0.11","0.0.12","0.0.14","0.0.15","0.0.16","0.0.17","0.0.18","0.0.3","0.0.4","0.0.5","0.0.8","0.0.9"]},{"source":"osv","ecosystem":"PyPI","package":"surfio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.19"}]}],"versions":["0.0.0","0.0.10","0.0.11","0.0.12","0.0.14","0.0.15","0.0.16","0.0.17","0.0.18","0.0.3","0.0.4","0.0.5","0.0.8","0.0.9"]}],"products":[{"vendor":"equinor","product":"surfio"}],"references":[{"url":"https://github.com/equinor/surfio/security/advisories/GHSA-rcr2-hggw-43wm","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/equinor/surfio/pull/86","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/equinor/surfio/commit/1619750bce28e39c4f378d2fb6d28b72380a12aa","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/equinor/surfio/commit/e009c0cad145484f854aeb22d1979f9216b291db","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/equinor/surfio/releases/tag/0.0.19","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/advisories/GHSA-rcr2-hggw-43wm","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55211.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55211","tags":["advisory"]},{"url":"https://github.com/equinor/surfio","tags":["package"]},{"url":"https://pypi.org/project/surfio","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-55211","title":"surfio IRAP header size fields cause out-of-bounds reads","description":"Surfio is a library for reading and writing surface files. Prior to 0.0.19, surfio does not correctly validate size fields in IRAP files, leading to a buffer overflow when untrusted files are parsed. The severity assumes surfio is used to parse untrusted files in a networking context such as a web service. This issue is fixed in version 0.0.19.","status":"published","published":"2026-09-15T15:28:59.014Z","modified":"2026-09-17T15:17:43.32Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:20:12.260247Z"}],"euvd":[{"id":"EUVD-2026-78671","description":"Surfio is a library for reading and writing surface files. Prior to 0.0.19, surfio does not correctly validate size fields in IRAP files, leading to a buffer overflow when untrusted files are parsed. The severity assumes surfio is used to parse untrusted files in a networking context such as a web service. This issue is fixed in version 0.0.19.","status":"published","published":"2026-09-15T15:28:59Z","modified":"2026-09-17T15:17:43Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T17:28:11.615612Z"}],"ghsa":[{"id":"GHSA-rcr2-hggw-43wm","title":"surfio has an out-of-bounds read","description":"### Impact\nPrior to version 0.0.19, surfio would not correctly validate size fields in irap files, leading to a buffer overflow . The severity rating assumes that surfio is used to parse untrused files in a networking context such as a web service.\n\n\n### Patches\nThe bug has been patched in version 0.0.19","status":"published","published":"2026-08-18T20:12:55Z","modified":"2026-08-18T20:12:56Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:41:03.602876Z"}],"nvd":[{"id":"CVE-2026-55211","description":"Surfio is a library for reading and writing surface files. Prior to 0.0.19, surfio does not correctly validate size fields in IRAP files, leading to a buffer overflow when untrusted files are parsed. The severity assumes surfio is used to parse untrusted files in a networking context such as a web service. This issue is fixed in version 0.0.19.","status":"published","published":"2026-09-15T16:17:14.56Z","modified":"2026-09-30T17:51:56.193Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:47.668237Z"}],"osv":[{"id":"CVE-2026-55211","title":"surfio IRAP header size fields cause out-of-bounds reads","description":"Surfio is a library for reading and writing surface files. Prior to 0.0.19, surfio does not correctly validate size fields in IRAP files, leading to a buffer overflow when untrusted files are parsed. The severity assumes surfio is used to parse untrusted files in a networking context such as a web service. This issue is fixed in version 0.0.19.","status":"published","published":"2026-09-15T15:28:59.014Z","modified":"2026-10-28T11:14:49.429018117Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:45:11.22012Z"},{"id":"GHSA-rcr2-hggw-43wm","title":"surfio has an out-of-bounds read","description":"### Impact\nPrior to version 0.0.19, surfio would not correctly validate size fields in irap files, leading to a buffer overflow . The severity rating assumes that surfio is used to parse untrused files in a networking context such as a web service.\n\n\n### Patches\nThe bug has been patched in version 0.0.19","status":"published","published":"2026-08-18T20:12:55Z","modified":"2026-08-19T12:55:34.365580878Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:46:55.877614Z"},{"id":"PYSEC-2026-3701","title":"surfio has an out-of-bounds read","description":"### Impact\nPrior to version 0.0.19, surfio would not correctly validate size fields in irap files, leading to a buffer overflow . The severity rating assumes that surfio is used to parse untrused files in a networking context such as a web service.\n\n\n### Patches\nThe bug has been patched in version 0.0.19","status":"published","published":"2026-08-19T11:56:28.037745Z","modified":"2026-08-19T12:45:05.375623949Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:56.847083Z"}]}}