{"id":"CVE-2026-67435","summary":"linuxfabrik-lib: fetch() forwards credential headers across a cross-origin redirect","details":"linuxfabrik-lib provides Python modules for database access, caching, shell execution, and API integrations. Prior to version 6.0.0, lib.url.fetch() followed cross-origin redirects while forwarding caller-supplied credential headers other than Authorization and Cookie, allowing a malicious redirect-capable server to receive headers such as X-Auth-Token from authenticated monitoring requests. This issue is fixed in version 6.0.0.","aliases":["GHSA-4jc5-g844-4x33","PYSEC-2026-3578"],"modified":"2026-08-12T03:51:38.541829011Z","published":"2026-07-29T19:39:19.088Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-200","CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67435.json"},"references":[{"type":"WEB","url":"https://github.com/Linuxfabrik/lib/releases/tag/v6.0.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67435.json"},{"type":"ADVISORY","url":"https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-4jc5-g844-4x33"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67435"},{"type":"FIX","url":"https://github.com/Linuxfabrik/lib/commit/6573ff9347e541200305d278d2663d2e54e052ff"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/linuxfabrik/lib","events":[{"introduced":"0"},{"fixed":"6573ff9347e541200305d278d2663d2e54e052ff"},{"fixed":"07ba0bd64df1ba8335b163340f6049d49273c28c"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"6.0.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v5.1.0","v5.0.0","v4.4.0","v4.3.0","v4.2.0","v4.1.0","v4.0.2","v4.0.1","v4.0.0","v3.4.1","v3.4.0","v3.3.0","v3.2.0","v3.1.1","v3.1.0","v3.0.0","v2.4.0","v2.3.0","v2.2.1","v2.2.0","v2.1.1.15","v2.1.1.7","v2.1.1.5","v2.1.0.7","v2.1.0.4","v2.1.0.0","v2.0.0.7","v2.0.0.0","2024060401","2024052901","2023112901","2023051201","2023030801","2022072001","2022030201","2022022801","2021101401","2021061501","2021021701","2021021601","2020122401","2020112001","2020111901","2020111801","2020102301","2020061901","2020052801","2020042001","2020041501"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67435.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"}]}