{"id":"CVE-2021-3426","details":"There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.","aliases":["BIT-libpython-2021-3426","BIT-python-2021-3426","BIT-python-min-2021-3426","PSF-2021-4"],"modified":"2026-04-16T00:03:44.456174022Z","published":"2021-05-20T13:15:07.753Z","related":["ALSA-2021:4160","ALSA-2021:4162","ALSA-2021:4399","SUSE-FU-2022:0444-1","SUSE-FU-2022:0445-1","SUSE-SU-2021:1490-1","SUSE-SU-2021:1557-1","SUSE-SU-2021:3486-1","SUSE-SU-2021:4015-1","SUSE-SU-2021:4015-2","SUSE-SU-2021:4104-1","openSUSE-SU-2021:4104-1","openSUSE-SU-2024:11283-1","openSUSE-SU-2024:11284-1","openSUSE-SU-2024:11285-1","openSUSE-SU-2024:11286-1","openSUSE-SU-2024:12089-1","openSUSE-SU-2024:12910-1","openSUSE-SU-2024:14109-1","openSUSE-SU-2024:14434-1","openSUSE-SU-2025:15713-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"last_affected":"1.10.0"}],"cpe":"cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.10.0:*:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"8.8"}],"cpe":"cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"3.10.0-alpha1"}],"cpe":"cpe:2.3:a:python:python:3.10.0:alpha1:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"3.10.0-alpha2"}],"cpe":"cpe:2.3:a:python:python:3.10.0:alpha2:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"3.10.0-alpha3"}],"cpe":"cpe:2.3:a:python:python:3.10.0:alpha3:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"3.10.0-alpha4"}],"cpe":"cpe:2.3:a:python:python:3.10.0:alpha4:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"3.10.0-alpha5"}],"cpe":"cpe:2.3:a:python:python:3.10.0:alpha5:*:*:*:*:*:*","source":"CPE_FIELD"},{"cpe":"cpe:2.3:a:python:python:3.10.0:alpha6:*:*:*:*:*:*","extracted_events":[{"last_affected":"3.10.0-alpha6"}],"source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"9.0"}],"cpe":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"32"}],"cpe":"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"33"}],"cpe":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"34"}],"cpe":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","source":"CPE_FIELD"},{"extracted_events":[{"last_affected":"8.0"}],"cpe":"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*","source":"CPE_FIELD"}]},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25HVHLBGO2KNPXJ3G426QEYSSCECJDU5/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BF2K7HEWADHN6P52R3QLIOX27U3DJ4HI/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQYPUKLLBOZMKFPO7RD7CENTXHUUEUV7/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LM5V4VPLBHBEASSAROYPSHXGXGGPHNOE/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNGAFMPIYIVJ47FCF2NK2PIX22HUG35B/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VPX7Y5GQDNB4FJTREWONGC4ZSVH7TGHF/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202104-04"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210629-0003/"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1935913"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"8d21aa21f2cbc6d50aab3f420bb23be1d081dac4"},{"introduced":"5c4568a05a0a62b5947c55f68f9f2ecfb90a4f12"},{"fixed":"aa73e1722eb9835dc99fd8983885a141112ee4ab"},{"introduced":"1bf9cc509326bc42cd8cb1650eb9bf64550d817e"},{"fixed":"9b2dd1fc6c9913dbeee623e724b6baa598038f97"},{"introduced":"fa919fdf2583bdfead1df00e842f24f30b2a34bf"},{"fixed":"024d8058b0cb2b13dfd65c8e3804a6b194a151ba"},{"introduced":"9cf6752276e6fcfd0c23fdb064ad27f448aaaf75"},{"fixed":"e723086bc33c19c6c52046d515eb3c2aab1b8f97"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.7.18"},{"introduced":"3.6.0"},{"fixed":"3.6.13"},{"introduced":"3.7.0"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