{"id":"CVE-2026-3783","summary":"token leak with redirect and netrc","details":"When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a redirect to a second URL, curl could leak that token to the second\nhostname under some circumstances.\n\nIf the hostname that the first request is redirected to has information in the\nused .netrc file, with either of the `machine` or `default` keywords, curl\nwould pass on the bearer token set for the first host also to the second one.","aliases":["CURL-CVE-2026-3783"],"modified":"2026-05-18T06:00:05.315428070Z","published":"2026-03-11T10:09:08.746Z","related":["SUSE-SU-2026:0879-1","SUSE-SU-2026:0885-1","SUSE-SU-2026:0903-1","SUSE-SU-2026:0911-1","SUSE-SU-2026:0921-1","SUSE-SU-2026:20668-1","SUSE-SU-2026:20722-1","SUSE-SU-2026:20760-1","SUSE-SU-2026:20918-1","openSUSE-SU-2026:10371-1","openSUSE-SU-2026:20404-1"],"database_specific":{"cna_assigner":"curl","unresolved_ranges":[{"extracted_events":[{"last_affected":"8.18.0"},{"last_affected":"8.17.0"},{"last_affected":"8.16.0"},{"last_affected":"8.15.0"},{"last_affected":"8.14.1"},{"last_affected":"8.14.0"},{"last_affected":"8.13.0"},{"last_affected":"8.12.1"},{"last_affected":"8.12.0"},{"last_affected":"8.11.1"},{"last_affected":"8.11.0"},{"last_affected":"8.10.1"},{"last_affected":"8.10.0"},{"last_affected":"8.9.1"},{"last_affected":"8.9.0"},{"last_affected":"8.8.0"},{"last_affected":"8.7.1"},{"last_affected":"8.7.0"},{"last_affected":"8.6.0"},{"last_affected":"8.5.0"},{"last_affected":"8.4.0"},{"last_affected":"8.3.0"},{"last_affected":"8.2.1"},{"last_affected":"8.2.0"},{"last_affected":"8.1.2"},{"last_affected":"8.1.1"},{"last_affected":"8.1.0"},{"last_affected":"8.0.1"},{"last_affected":"8.0.0"},{"last_affected":"7.88.1"},{"last_affected":"7.88.0"},{"last_affected":"7.87.0"},{"last_affected":"7.86.0"},{"last_affected":"7.85.0"},{"last_affected":"7.84.0"},{"last_affected":"7.83.1"},{"last_affected":"7.83.0"},{"last_affected":"7.82.0"},{"last_affected":"7.81.0"},{"last_affected":"7.80.0"},{"last_affected":"7.79.1"},{"last_affected":"7.79.0"},{"last_affected":"7.78.0"},{"last_affected":"7.77.0"},{"last_affected":"7.76.1"},{"last_affected":"7.76.0"},{"last_affected":"7.75.0"},{"last_affected":"7.74.0"},{"last_affected":"7.73.0"},{"last_affected":"7.72.0"},{"last_affected":"7.71.1"},{"last_affected":"7.71.0"},{"last_affected":"7.70.0"},{"last_affected":"7.69.1"},{"last_affected":"7.69.0"},{"last_affected":"7.68.0"},{"last_affected":"7.67.0"},{"last_affected":"7.66.0"},{"last_affected":"7.65.3"},{"last_affected":"7.65.2"},{"last_affected":"7.65.1"},{"last_affected":"7.65.0"},{"last_affected":"7.64.1"},{"last_affected":"7.64.0"},{"last_affected":"7.63.0"},{"last_affected":"7.62.0"},{"last_affected":"7.61.1"},{"last_affected":"7.61.0"},{"last_affected":"7.60.0"},{"last_affected":"7.59.0"},{"last_affected":"7.58.0"},{"last_affected":"7.57.0"},{"last_affected":"7.56.1"},{"last_affected":"7.56.0"},{"last_affected":"7.55.1"},{"last_affected":"7.55.0"},{"last_affected":"7.54.1"},{"last_affected":"7.54.0"},{"last_affected":"7.53.1"},{"last_affected":"7.53.0"},{"last_affected":"7.52.1"},{"last_affected":"7.52.0"},{"last_affected":"7.51.0"},{"last_affected":"7.50.3"},{"last_affected":"7.50.2"},{"last_affected":"7.50.1"},{"last_affected":"7.50.0"},{"last_affected":"7.49.1"},{"last_affected":"7.49.0"},{"last_affected":"7.48.0"},{"last_affected":"7.47.1"},{"last_affected":"7.47.0"},{"last_affected":"7.46.0"},{"last_affected":"7.45.0"},{"last_affected":"7.44.0"},{"last_affected":"7.43.0"},{"last_affected":"7.42.1"},{"last_affected":"7.42.0"},{"last_affected":"7.41.0"},{"last_affected":"7.40.0"},{"last_affected":"7.39.0"},{"last_affected":"7.38.0"},{"last_affected":"7.37.1"},{"last_affected":"7.37.0"},{"last_affected":"7.36.0"},{"last_affected":"7.35.0"},{"last_affected":"7.34.0"},{"last_affected":"7.33.0"}],"source":"AFFECTED_FIELD"}],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3783.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/03/11/2"},{"type":"WEB","url":"https://curl.se/docs/CVE-2026-3783.html"},{"type":"WEB","url":"https://curl.se/docs/CVE-2026-3783.json"},{"type":"WEB","url":"https://hackerone.com/reports/3583983"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3783.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3783"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"f77e89c5d20db09eaebf378ec036a7e796932810"},{"fixed":"8c908d2d0a6d32abdedda2c52e90bd56ec76c24d"}],"database_specific":{"extracted_events":[{"introduced":"7.33.0"},{"fixed":"8.19.0"}],"cpe":"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*","source":"CPE_FIELD"}}],"versions":["curl-8_18_0","curl-8_17_0","curl-8_16_0","curl-8_15_0","curl-8_14_1","curl-8_14_0","curl-8_13_0","curl-8_12_1","curl-8_12_0","curl-8_11_1","curl-8_11_0","curl-8_10_1","curl-8_10_0","curl-8_9_1","curl-8_9_0","curl-8_8_0","curl-8_7_1","curl-8_7_0","curl-8_6_0","curl-8_5_0","curl-8_4_0","curl-8_3_0","curl-8_2_1","curl-8_2_0","curl-8_1_2","curl-8_1_1","curl-8_1_0","curl-8_0_1","curl-8_0_0","curl-7_88_1","curl-7_88_0","curl-7_87_0","curl-7_86_0","curl-7_85_0","curl-7_84_0","curl-7_83_1","curl-7_83_0","curl-7_82_0","curl-7_81_0","curl-7_80_0","curl-7_79_1","curl-7_79_0","curl-7_78_0","curl-7_77_0","curl-7_76_1","curl-7_76_0","curl-7_75_0","curl-7_74_0","c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