{"url":"http://public2.vulnerablecode.io/api/packages/127751?format=json","purl":"pkg:deb/debian/ruby2.7@0?distro=bullseye","type":"deb","namespace":"debian","name":"ruby2.7","version":"0","qualifiers":{"distro":"bullseye"},"subpath":"","is_vulnerable":false,"next_non_vulnerable_version":"2.7.1-1","latest_non_vulnerable_version":"2.7.4-1+deb11u5","affected_by_vulnerabilities":[],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/51261?format=json","vulnerability_id":"VCID-8285-7gtt-eqdf","summary":"Unsafe Object Creation Vulnerability in JSON (Additional fix)\nWhen parsing certain JSON documents, the json gem (including the one bundled\nwith Ruby) can be coerced into creating arbitrary objects in the target\nsystem.\n\nThis is the same issue as CVE-2013-0269. The previous fix was incomplete, which\naddressed `JSON.parse(user_input)`, but didn’t address some other styles of JSON\nparsing including `JSON(user_input)` and `JSON.parse(user_input, nil)`.\n\nSee CVE-2013-0269 in detail. Note that the issue was exploitable to cause a\nDenial of Service by creating many garbage-uncollectable Symbol objects, but\nthis kind of attack is no longer valid because Symbol objects are now\ngarbage-collectable. However, creating arbitrary objects may cause severe\nsecurity consequences depending upon the application code.\n\nPlease update the json gem to version 2.3.0 or later. You can use `gem update\njson` to update it. If you are using bundler, please add `gem \"json\", \">= 2.3.0\"`\nto your 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traversal in Tempfile on Windows\nThere is an unintentional directory creation vulnerability in tmpdir library\nbundled with Ruby on Windows. And there is also an unintentional file\ncreation vulnerability in tempfile library bundled with Ruby on Windows,\nbecause it uses tmpdir internally.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-28966","reference_id":"","reference_type":"","scores":[{"value":"0.00247","scoring_system":"epss","scoring_elements":"0.4826","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00247","scoring_system":"epss","scoring_elements":"0.48229","published_at":"2026-06-09T12:55:00Z"},{"value":"0.00247","scoring_system":"epss","scoring_elements":"0.48216","published_at":"2026-06-08T12:55:00Z"},{"value":"0.00247","scoring_system":"epss","scoring_elements":"0.48245","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00247","scoring_system":"epss","scoring_elements":"0.48197","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00247","scoring_system":"epss","scoring_elements":"0.48264","published_at":"2026-06-06T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-28966"},{"reference_url":"https://github.com/ruby/tmpdir","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ruby/tmpdir"},{"reference_url":"https://github.com/ruby/tmpdir/commit/93798c01cb7c10476e50a4d80130a329ba47f348","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ruby/tmpdir/commit/93798c01cb7c10476e50a4d80130a329ba47f348"},{"reference_url":"https://github.com/ruby/tmpdir/pull/8","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/ruby/tmpdir/pull/8"},{"reference_url":"https://hackerone.com/reports/1131465","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://hackerone.com/reports/1131465"},{"reference_url":"https://rubygems.org/gems/tmpdir","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://rubygems.org/gems/tmpdir"},{"reference_url":"https://security.netapp.com/advisory/ntap-20210902-0004","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://security.netapp.com/advisory/ntap-20210902-0004"},{"reference_url":"https://security.netapp.com/advisory/ntap-20210902-0004/","reference_id":"","reference_type":"","scores":[],"url":"https://security.netapp.com/advisory/ntap-20210902-0004/"},{"reference_url":"https://www.ruby-lang.org/en/news/2021/04/05/tempfile-path-traversal-on-windows-cve-2021-28966","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.ruby-lang.org/en/news/2021/04/05/tempfile-path-traversal-on-windows-cve-2021-28966"},{"reference_url":"https://www.ruby-lang.org/en/news/2021/04/05/tempfile-path-traversal-on-windows-cve-2021-28966/","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":""}],"url":"https://www.ruby-lang.org/en/news/2021/04/05/tempfile-path-traversal-on-windows-cve-2021-28966/"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28966","reference_id":"CVE-2021-28966","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28966"},{"reference_url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/tmpdir/CVE-2021-28966.yml","reference_id":"CVE-2021-28966.YML","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/tmpdir/CVE-2021-28966.yml"},{"reference_url":"https://github.com/advisories/GHSA-46f2-3v63-3xrp","reference_id":"GHSA-46f2-3v63-3xrp","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],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