{"id":"CVE-2021-3572","title":"A flaw was found in python-pip in the way it handled Unicode separators in git references","summary":"A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to …","severity":"medium","cvss":5.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N","cwe":["CWE-20"],"vendor":"pypa","product":"pip","affected":["pip < 21.1","agile_product_lifecycle_management = 9.3.6","communications_cloud_native_core_network_function_cloud_native_environment = 1.10.0","communications_cloud_native_core_network_function_cloud_native_environment = 22.1.0","communications_cloud_native_core_policy = 1.15.0","communications_cloud_native_core_policy = 22.1.3"],"patched":["pip 21.1"],"published":"2021-11-10","updated":"2026-08-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-3572","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1962856","label":"secalert@redhat.com"},{"url":"https://security.netapp.com/advisory/ntap-20240621-0006/","label":"secalert@redhat.com"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","label":"secalert@redhat.com"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1962856","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20240621-0006/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","exploit-available"],"epss":0.01829,"epssPercentile":0.77584,"ingestedAt":"2026-08-25T17:29:31.781Z","exploits":{"github":1,"githubRepos":["https://github.com/frenzymadness/CVE-2021-3572"],"checkedAt":"2026-09-21T15:24:24.454Z"},"exploitAvailable":true,"slug":"CVE-2021-3572","body":"## Overview\n\nA flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to data integrity. This is fixed in python-pip version 21.1.\n\n## Affected\n\n- `pip < 21.1`\n- `agile_product_lifecycle_management = 9.3.6`\n- `communications_cloud_native_core_network_function_cloud_native_environment = 1.10.0`\n- `communications_cloud_native_core_network_function_cloud_native_environment = 22.1.0`\n- `communications_cloud_native_core_policy = 1.15.0`\n- `communications_cloud_native_core_policy = 22.1.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `pip 21.1`","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":31.4,"likelihood":0.4,"exploitation":12,"ransomware":0},"changes":[{"seq":4528,"id":"CVE-2021-3572","ts":1788887187971,"field":"exploit_available","old":"false","new":"true"},{"seq":3411,"id":"CVE-2021-3572","ts":1788886305626,"field":"exploit_available","old":"true","new":"false"},{"seq":2266,"id":"CVE-2021-3572","ts":1788882975113,"field":"exploit_available","old":"false","new":"true"},{"seq":1295,"id":"CVE-2021-3572","ts":1788882386927,"field":"exploit_available","old":"true","new":"false"},{"seq":409,"id":"CVE-2021-3572","ts":1788881822773,"field":"exploit_available","old":"false","new":"true"}]}