{"id":"CVE-2026-10705","aliases":["DEBIAN-CVE-2026-10705","EUVD-2026-34064","GHSA-qp9q-4rh4-m8jc","UBUNTU-CVE-2026-10705"],"status":"published","title":"dask HLL hyperloglog.py nunique_approx resource consumption","description":"A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.","severity":{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00287,"percentile":0.21424,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-404"],"published":"2026-06-03T01:15:10Z","modified":"2026-10-17T12:58:00Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2022.12.1+dfsg-2","2023.12.1+dfsg-1","2023.12.1+dfsg-2","2023.8.0+dfsg-1","2023.8.0+dfsg-2","2024.1.1+dfsg-1","2024.12.1+dfsg-1","2024.12.1+dfsg-2","2024.12.1+dfsg-3","2024.12.1+dfsg-4","2024.12.1+dfsg-6","2024.5.2+dfsg-1"]},{"source":"osv","ecosystem":"Debian:13","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2024.12.1+dfsg-2","2024.12.1+dfsg-3","2024.12.1+dfsg-4","2024.12.1+dfsg-6"]},{"source":"osv","ecosystem":"Debian:14","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2024.12.1+dfsg-2","2024.12.1+dfsg-3","2024.12.1+dfsg-4","2024.12.1+dfsg-6"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.15.1-3","0.15.4-1","0.16.0-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0+dfsg-2","2.8.0-0ubuntu4","2.8.1+dfsg-0.2ubuntu1","2.8.1+dfsg-0.3","2.8.1+dfsg-0.4"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2021.01.0+dfsg-1ubuntu1","2021.09.1+dfsg-1ubuntu1","2021.09.1+dfsg-1ubuntu2","2022.01.0+dfsg-1","2022.01.0+dfsg-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2023.8.0+dfsg-2","2023.12.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2024.12.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2024.12.1+dfsg-2build1","2024.12.1+dfsg-3","2024.12.1+dfsg-4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"dask","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2024.12.1+dfsg-2","2024.12.1+dfsg-2build1"]}],"references":[{"url":"https://vuldb.com/vuln/368018","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/368018/cti","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-10705","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/831411","tags":["third-party-advisory"]},{"url":"https://github.com/dask/dask/issues/12403","tags":["issue-tracking"]},{"url":"https://github.com/dask/dask/pull/12401","tags":["issue-tracking","patch"]},{"url":"https://github.com/dask/dask/","tags":["product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-10705"},{"url":"https://github.com/dask/dask"},{"url":"https://github.com/advisories/GHSA-qp9q-4rh4-m8jc"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-10705","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-10705","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-10705","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-10705","title":"dask HLL hyperloglog.py nunique_approx resource consumption","description":"A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-06-03T01:15:10.343Z","modified":"2026-06-03T14:11:44.133Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"low","assessor":"cna"},{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:R","level":"low","assessor":"cna"},{"version":"3.0","score":3.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:R","level":"low","assessor":"cna"},{"version":"2.0","score":2.1,"vector":"AV:N/AC:H/Au:S/C:N/I:N/A:P/E:ND/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-400","CWE-404"],"updated_at":"2026-11-02T13:40:01.309549Z"}],"euvd":[{"id":"EUVD-2026-34064","description":"A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-06-03T01:15:10Z","modified":"2026-06-03T14:11:44Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","level":"low"}],"updated_at":"2026-11-02T18:20:54.253343Z"}],"ghsa":[{"id":"GHSA-qp9q-4rh4-m8jc","title":"A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of...","description":"A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-06-03T03:30:25Z","modified":"2026-06-03T03:30:25Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"},{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:08:30.717444Z"}],"nvd":[{"id":"CVE-2026-10705","description":"A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-06-03T02:16:17.397Z","modified":"2026-07-22T19:10:00.12Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"},{"version":"2.0","score":2.1,"vector":"AV:N/AC:H/Au:S/C:N/I:N/A:P","level":"low","assessor":"secondary"}],"cwes":["CWE-400","CWE-404"],"updated_at":"2026-11-02T14:12:22.022466Z"}],"osv":[{"id":"DEBIAN-CVE-2026-10705","description":"A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-06-03T02:16:17.397Z","modified":"2026-10-01T03:01:04.567533264Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"}],"updated_at":"2026-11-02T15:45:49.381767Z"},{"id":"UBUNTU-CVE-2026-10705","description":"A flaw has been found in dask up to 3.0. Affected by this issue is the function nunique_approx of the file dask/dataframe/hyperloglog.py of the component HLL Handler. This manipulation causes resource consumption. The attack is possible to be carried out remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The pull request to fix this issue awaits acceptance.","status":"published","published":"2026-06-03T02:16:00Z","modified":"2026-10-17T12:58:00.787202497Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"},{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"low"}],"updated_at":"2026-11-02T16:55:59.130573Z"}]}}