{"id":"CVE-2026-1502","summary":"HTTP client proxy tunnel headers not validated for CR/LF","details":"CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.","aliases":["BIT-libpython-2026-1502","BIT-python-2026-1502","BIT-python-min-2026-1502","PSF-2026-15"],"modified":"2026-06-17T04:01:33.106996436Z","published":"2026-04-10T17:54:44.121Z","related":["ALSA-2026:10950","ALSA-2026:19019","ALSA-2026:19064","ALSA-2026:19176","ALSA-2026:19177","CGA-f3xq-534h-274w","SUSE-SU-2026:1715-1","SUSE-SU-2026:1818-1","SUSE-SU-2026:1937-1","SUSE-SU-2026:1947-1","SUSE-SU-2026:2055-1","openSUSE-SU-2026:10647-1","openSUSE-SU-2026:10648-1","openSUSE-SU-2026:10667-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1502.json","cna_assigner":"PSF"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/04/11/4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1502.json"},{"type":"ADVISORY","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/2IVPAEQWUJBCTQZEJEVTYCIKSMQPGRZ3/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1502"},{"type":"REPORT","url":"https://github.com/python/cpython/issues/146211"},{"type":"FIX","url":"https://github.com/python/cpython/commit/05ed7ce7ae9e17c23a04085b2539fe6d6d3cef69"},{"type":"FIX","url":"https://github.com/python/cpython/commit/9e071c9b28c17f347f81b388a003d4eeb3c7a8dd"},{"type":"FIX","url":"https://github.com/python/cpython/commit/b1cf9016335cb637c5a425032e8274a224f4b2ed"},{"type":"FIX","url":"https://github.com/python/cpython/commit/c00c386faa579ad71196d33408644478488e43ec"},{"type":"FIX","url":"https://github.com/python/cpython/pull/146212"},{"type":"PACKAGE","url":"https://github.com/python/cpython"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"introduced":"b092705907c758d4f9742028652c9802f9f03dd3"},{"introduced":"f31a89bb901067dd105b00cfa90523cf7ffdbbdd"},{"fixed":"fd17997c3866d61e0e7bd8201b1d8f35b40a40bd"},{"fixed":"a68a9190498a16ab1a5c9012ef5a70df81a5b328"},{"fixed":"f31a89bb901067dd105b00cfa90523cf7ffdbbdd"},{"fixed":"05ed7ce7ae9e17c23a04085b2539fe6d6d3cef69"},{"fixed":"9e071c9b28c17f347f81b388a003d4eeb3c7a8dd"},{"fixed":"b1cf9016335cb637c5a425032e8274a224f4b2ed"},{"fixed":"c00c386faa579ad71196d33408644478488e43ec"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"3.13.14"},{"introduced":"3.14.0a1"},{"fixed":"3.14.5rc1"},{"introduced":"3.15.0a1"},{"fixed":"3.15.0b1"}]}}],"versions":["v3.13.13","v3.14.4","v3.15.0a8","v3.15.0a7","v3.12.13","v3.15.0a6","v3.13.12","v3.14.3","v3.15.0a5","v3.15.0a4","v3.15.0a3","v3.14.2","v3.13.11","v3.13.10","v3.14.1","v3.15.0a2","v3.15.0a1","v3.13.8","v3.12.12","v3.14.0","v3.14.0rc3","v3.13.7","v3.14.0rc2","v3.13.6","v3.14.0rc1","v3.14.0b4","v3.14.0b3","v3.13.5","v3.13.4","v3.12.11","v3.14.0b2","v3.14.0b1","v3.13.3","v3.12.10","v3.13.2","v3.12.9","v3.13.1","v3.12.8","v3.13.0","v3.13.0rc3","v3.12.7","v3.13.0rc2","v3.12.6","v3.12.5","v3.13.0rc1","v3.13.0b4","v3.13.0b3","v3.12.4","v3.13.0b2","v3.13.0b1","v3.13.0a6","v3.12.3","v3.13.0a5","v3.13.0a4","v3.12.2","v3.13.0a3","v3.12.1","v3.13.0a2","v3.13.0a1","v3.12.0","v3.12.0rc3","v3.12.0rc2","v3.12.0rc1","v3.12.0b4","v3.12.0b3","v3.12.0b2","v3.12.0b1","v3.12.0a7","v3.12.0a6","v3.12.0a5","v3.12.0a4","v3.12.0a3","v3.12.0a2","v3.12.0a1","v3.11.0b1","v3.11.0a7","v3.11.0a6","v3.11.0a5","v3.11.0a4","v3.11.0a3","v3.10.0a7","v3.10.0a1","v3.9.0a2","v3.7.0a2","v3.6.0b1","v3.6.0a3","v3.5.0b1","v3.5.0a4","v3.5.0a3","v3.5.0a2","v3.5.0a1","v3.4.0b3","v3.4.0b2","v3.4.0b1","v3.4.0a4","v3.4.0a3","v3.4.0a2","v3.4.0a1","v3.3.0rc3","v3.3.0rc2","v3.3.0rc1","v3.3.0b2","v3.3.0b1","v3.3.0a4","v3.3.0a3","v3.3.0a2","v3.2rc3","v3.2rc2","v3.2rc1","v3.2b2","v3.2b1","v3.2a4","v3.2a3","v3.2a2","v3.2a1","v3.1","v3.1rc2","v3.1rc1","v3.1b1","v3.1a2","v3.1a1","v3.0rc3","v3.0rc2","v3.0rc1","v3.0b3","v3.0b2","v3.0b1","v3.0a5","v3.0a4","v3.0a3","v3.0a2","v3.0a1","v2.4","v2.4c1","v2.4b2","v2.4b1","v2.4a3","v2.4a2","v2.4a1","v2.3c2","v2.3c1","v2.2a3","v2.1","v2.1c2","v2.1c1","v2.1b2","v2.1b1","v2.1a2","v2.1a1","v2.0","v2.0c1","v2.0b2","v2.0b1","v1.6a2","v1.6a1","v1.5.2","v1.5.2c1","v1.5.2b2","v1.5.2b1","v1.5.2a2","v1.5.2a1","v1.5.1","v1.5","v1.5b2","v1.5b1","v1.5a4","v1.5a3","v1.5a2","v1.5a1","v1.4","v1.4b3","v1.4b2","v1.4b1","v1.3","v1.3b1","v1.2","v1.2b4","v1.2b3","v1.2b2","v1.2b1","v1.1.1","v1.1","v1.0.2","v1.0.1","v0.9.9","v0.9.8"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-1502.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"}]}