{"id":"CVE-2024-3574","aliases":["DEBIAN-CVE-2024-3574","EUVD-2024-0622","GHSA-cw9j-q3vf-hrrv","PYSEC-2026-1908","UBUNTU-CVE-2024-3574","USN-7476-1"],"status":"published","title":"Authorization Header Leak During Cross-Domain Redirect in scrapy/scrapy","description":"In scrapy version 2.10.1, an issue was identified where the Authorization header, containing credentials for server authentication, is leaked to a third-party site during a cross-domain redirect. This vulnerability arises from the failure to remove the Authorization header when redirecting across domains. The exposure of the Authorization header to unauthorized actors could potentially allow for account hijacking.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00648,"percentile":0.51342,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2024-02-15T15:32:15Z","modified":"2026-11-02T12:02:31Z","fixes":[{"ecosystem":"PyPI","package":"scrapy","fixed_in":["2.11.1","1.8.4"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:13","package":"python-scrapy","fixed_in":["2.11.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"python-scrapy","fixed_in":["2.11.1-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"python-scrapy","fixed_in":["1.5.0-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"python-scrapy","fixed_in":["1.7.3-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:22.04:LTS","package":"python-scrapy","fixed_in":["2.5.1-2ubuntu0.1~esm1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2"},{"fixed":"2.11.1"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.4"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.0-1","2.11.0-1","2.11.0-2","2.11.1-1","2.11.1-2","2.11.2-1","2.11.2-2","2.11.2-3","2.12.0-1","2.12.0-2","2.13.1-1~exp1","2.13.3-1","2.13.3-1~exp1","2.13.4-1","2.13.4-2","2.14.0-1","2.14.1-1","2.14.2-1","2.15.1-1","2.16.0-1","2.16.0-2","2.17.0-1","2.18.0-1","2.18.0-2","2.19.0-1","2.19.0-2","2.8.0-2","2.9.0-1","2.9.0-1~exp1","2.9.0-2"]},{"source":"osv","ecosystem":"Debian:13","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.11.1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.11.1-1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2"},{"fixed":"2.11.1"}]}],"versions":["2.0.0","2.0.1","2.1.0","2.10.0","2.10.1","2.11.0","2.2.0","2.2.1","2.3.0","2.4.0","2.4.1","2.5.0","2.5.1","2.6.0","2.6.1","2.6.2","2.6.3","2.7.0","2.7.1","2.8.0","2.9.0"]},{"source":"osv","ecosystem":"PyPI","package":"scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.4"}]}],"versions":["0.10.4.2364","0.12.0.2550","0.14.1","0.14.2","0.14.3","0.14.4","0.16.0","0.16.1","0.16.2","0.16.3","0.16.4","0.16.5","0.18.0","0.18.1","0.18.2","0.18.3","0.18.4","0.20.0","0.20.1","0.20.2","0.22.0","0.22.1","0.22.2","0.24.0","0.24.1","0.24.2","0.24.3","0.24.4","0.24.5","0.24.6","0.7","0.8","0.9","1.0.0","1.0.0rc1","1.0.0rc2","1.0.0rc3","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.1.0","1.1.0rc1","1.1.0rc2","1.1.0rc3","1.1.0rc4","1.1.1","1.1.2","1.1.3","1.1.4","1.2.0","1.2.1","1.2.2","1.2.3","1.3.0","1.3.1","1.3.2","1.3.3","1.4.0","1.5.0","1.5.1","1.5.2","1.6.0","1.7.0","1.7.1","1.7.2","1.7.3","1.7.4","1.8.0","1.8.1","1.8.2","1.8.3"]},{"source":"osv","ecosystem":"PyPI","package":"scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.4"},{"introduced":"2"},{"fixed":"2.11.1"}]}],"versions":["0.10.4.2364","0.12.0.2550","0.14.1","0.14.2","0.14.3","0.14.4","0.16.0","0.16.1","0.16.2","0.16.3","0.16.4","0.16.5","0.18.0","0.18.1","0.18.2","0.18.3","0.18.4","0.20.0","0.20.1","0.20.2","0.22.0","0.22.1","0.22.2","0.24.0","0.24.1","0.24.2","0.24.3","0.24.4","0.24.5","0.24.6","0.7","0.8","0.9","1.0.0","1.0.0rc1","1.0.0rc2","1.0.0rc3","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.1.0","1.1.0rc1","1.1.0rc2","1.1.0rc3","1.1.0rc4","1.1.1","1.1.2","1.1.3","1.1.4","1.2.0","1.2.1","1.2.2","1.2.3","1.3.0","1.3.1","1.3.2","1.3.3","1.4.0","1.5.0","1.5.1","1.5.2","1.6.0","1.7.0","1.7.1","1.7.2","1.7.3","1.7.4","1.8.0","1.8.1","1.8.2","1.8.3","2.0.0","2.0.1","2.1.0","2.10.0","2.10.1","2.11.0","2.2.0","2.2.1","2.3.0","2.4.0","2.4.1","2.5.0","2.5.1","2.6.0","2.6.1","2.6.2","2.6.3","2.7.0","2.7.1","2.8.0","2.9.0"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0-1","1.0.3-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.0-1ubuntu0.1~esm1"}]}],"versions":["1.3.0-1~exp2","1.4.0-1","1.5.0-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.3-1ubuntu0.1~esm1"}]}],"versions":["1.7.3-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.1-2ubuntu0.1~esm1"}]}],"versions":["2.4.1-2","2.5.1-2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.0-1ubuntu0.1~esm1"}]}],"versions":["1.3.0-1~exp2","1.4.0-1","1.5.0-1"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.3-1ubuntu0.1~esm1"}]}],"versions":["1.7.3-1"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.1-2ubuntu0.1~esm1"}]}],"versions":["2.4.1-2","2.5.1-2"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"python-scrapy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.11.1-1ubuntu0.1~esm2"}]}],"versions":["2.10.0-1","2.11.0-1","2.11.0-2","2.11.1-1"],"bundled":6}],"products":[{"vendor":"scrapy","product":"scrapy"},{"vendor":"scrapy","product":"scrapy/scrapy"}],"references":[{"url":"https://huntr.com/bounties/49974321-2718-43e3-a152-62b16eed72a9","tags":["x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","web","report"]},{"url":"https://github.com/scrapy/scrapy/commit/5bcb8fd5019c72d05c4a96da78a7fcb6ecb55b75","tags":["x_transferred","Patch","fix","report"]},{"url":"https://github.com/scrapy/scrapy/security/advisories/GHSA-cw9j-q3vf-hrrv","tags":["web","report"]},{"url":"https://github.com/scrapy/scrapy/commit/ee7bd9d217fc126063575d5649f00bdeeca2faae","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-3574","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cw9j-q3vf-hrrv","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/3xxx/CVE-2024-3574.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-3574","tags":["advisory"]},{"url":"https://github.com/scrapy/scrapy","tags":["package"]},{"url":"https://pypi.org/project/scrapy","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2024-3574","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-3574","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7476-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-41125","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-0577","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-1892","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-1968","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-3572","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2024-3574","title":"Authorization Header Leak During Cross-Domain Redirect in scrapy/scrapy","description":"In scrapy version 2.10.1, an issue was identified where the Authorization header, containing credentials for server authentication, is leaked to a third-party site during a cross-domain redirect. This vulnerability arises from the failure to remove the Authorization header when redirecting across domains. The exposure of the Authorization header to unauthorized actors could potentially allow for account hijacking.","status":"published","published":"2024-04-16T00:00:15.109Z","modified":"2024-08-01T20:12:08.239Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:34:10.613319Z"}],"euvd":[{"id":"EUVD-2024-0622","description":"In scrapy version 2.10.1, an issue was identified where the Authorization header, containing credentials for server authentication, is leaked to a third-party site during a cross-domain redirect. This vulnerability arises from the failure to remove the Authorization header when redirecting across domains. The exposure of the Authorization header to unauthorized actors could potentially allow for account hijacking.","status":"published","published":"2024-04-16T00:00:15Z","modified":"2024-08-01T20:12:08Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-03T03:50:38.460826Z"}],"ghsa":[{"id":"GHSA-cw9j-q3vf-hrrv","title":"Scrapy authorization header leakage on cross-domain redirect","description":"### Impact\n\nWhen you send a request with the `Authorization` header to one domain, and the response asks to redirect to a different domain, Scrapy’s built-in redirect middleware creates a follow-up redirect request that keeps the original `Authorization` header, leaking its content to that second domain.\n\nThe [right behavior](https://fetch.spec.whatwg.org/#ref-for-cors-non-wildcard-request-header-name) would be to drop the `Authorization` header instead, in this scenario.\n\n### Patches\n\nUpgrade to Scrapy 2.11.1.\n\nIf you are using Scrapy 1.8 or a lower version, and upgrading to Scrapy 2.11.1 is not an option, you may upgrade to Scrapy 1.8.4 instead.\n\n### Workarounds\n\nIf you cannot upgrade, make sure that you are not using the `Authentication` header, either directly or through some third-party plugin.\n\nIf you need to use that header in some requests, add `\"dont_redirect\": True` to the `request.meta` dictionary of those requests to disable following redirects for them.\n\nIf you need to keep (same domain) redirect support on those requests, make sure you trust the target website not to redirect your requests to a different domain.\n\n### Acknowledgements\n\nThis security issue was reported by @ranjit-git  [through huntr.com](https://huntr.com/bounties/49974321-2718-43e3-a152-62b16eed72a9/).","status":"published","published":"2024-02-15T15:32:15Z","modified":"2026-03-22T05:04:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:39:40.633038Z"}],"nvd":[{"id":"CVE-2024-3574","description":"In scrapy version 2.10.1, an issue was identified where the Authorization header, containing credentials for server authentication, is leaked to a third-party site during a cross-domain redirect. This vulnerability arises from the failure to remove the Authorization header when redirecting across domains. The exposure of the Authorization header to unauthorized actors could potentially allow for account hijacking.","status":"published","published":"2024-04-16T00:15:12.75Z","modified":"2026-06-17T07:44:32.72Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:09:50.299382Z"}],"osv":[{"id":"CVE-2024-3574","title":"Authorization Header Leak During Cross-Domain Redirect in scrapy/scrapy","description":"In scrapy version 2.10.1, an issue was identified where the Authorization header, containing credentials for server authentication, is leaked to a third-party site during a cross-domain redirect. This vulnerability arises from the failure to remove the Authorization header when redirecting across domains. The exposure of the Authorization header to unauthorized actors could potentially allow for account hijacking.","status":"published","published":"2024-04-16T00:00:15.109Z","modified":"2026-10-28T02:30:39.865183837Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:44:40.704083Z"},{"id":"DEBIAN-CVE-2024-3574","description":"In scrapy version 2.10.1, an issue was identified where the Authorization header, containing credentials for server authentication, is leaked to a third-party site during a cross-domain redirect. This vulnerability arises from the failure to remove the Authorization header when redirecting across domains. The exposure of the Authorization header to unauthorized actors could potentially allow for account hijacking.","status":"published","published":"2024-04-16T00:15:12.75Z","modified":"2026-11-02T12:02:31.901229261Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:42.530184Z"},{"id":"GHSA-cw9j-q3vf-hrrv","title":"Scrapy authorization header leakage on cross-domain redirect","description":"### Impact\n\nWhen you send a request with the `Authorization` header to one domain, and the response asks to redirect to a different domain, Scrapy’s built-in redirect middleware creates a follow-up redirect request that keeps the original `Authorization` header, leaking its content to that second domain.\n\nThe [right behavior](https://fetch.spec.whatwg.org/#ref-for-cors-non-wildcard-request-header-name) would be to drop the `Authorization` header instead, in this scenario.\n\n### Patches\n\nUpgrade to Scrapy 2.11.1.\n\nIf you are using Scrapy 1.8 or a lower version, and upgrading to Scrapy 2.11.1 is not an option, you may upgrade to Scrapy 1.8.4 instead.\n\n### Workarounds\n\nIf you cannot upgrade, make sure that you are not using the `Authentication` header, either directly or through some third-party plugin.\n\nIf you need to use that header in some requests, add `\"dont_redirect\": True` to the `request.meta` dictionary of those requests to disable following redirects for them.\n\nIf you need to keep (same domain) redirect support on those requests, make sure you trust the target website not to redirect your requests to a different domain.\n\n### Acknowledgements\n\nThis security issue was reported by @ranjit-git  [through huntr.com](https://huntr.com/bounties/49974321-2718-43e3-a152-62b16eed72a9/).","status":"published","published":"2024-02-15T15:32:15Z","modified":"2026-07-07T17:56:22.401006725Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:46:45.639885Z"},{"id":"PYSEC-2026-1908","title":"Scrapy authorization header leakage on cross-domain redirect","description":"### Impact\n\nWhen you send a request with the `Authorization` header to one domain, and the response asks to redirect to a different domain, Scrapy’s built-in redirect middleware creates a follow-up redirect request that keeps the original `Authorization` header, leaking its content to that second domain.\n\nThe [right behavior](https://fetch.spec.whatwg.org/#ref-for-cors-non-wildcard-request-header-name) would be to drop the `Authorization` header instead, in this scenario.\n\n### Patches\n\nUpgrade to Scrapy 2.11.1.\n\nIf you are using Scrapy 1.8 or a lower version, and upgrading to Scrapy 2.11.1 is not an option, you may upgrade to Scrapy 1.8.4 instead.\n\n### Workarounds\n\nIf you cannot upgrade, make sure that you are not using the `Authentication` header, either directly or through some third-party plugin.\n\nIf you need to use that header in some requests, add `\"dont_redirect\": True` to the `request.meta` dictionary of those requests to disable following redirects for them.\n\nIf you need to keep (same domain) redirect support on those requests, make sure you trust the target website not to redirect your requests to a different domain.\n\n### Acknowledgements\n\nThis security issue was reported by @ranjit-git  [through huntr.com](https://huntr.com/bounties/49974321-2718-43e3-a152-62b16eed72a9/).","status":"published","published":"2026-07-07T11:45:32.587793Z","modified":"2026-07-07T17:47:52.911185651Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:52:55.537808Z"},{"id":"UBUNTU-CVE-2024-3574","description":"In scrapy version 2.10.1, an issue was identified where the Authorization header, containing credentials for server authentication, is leaked to a third-party site during a cross-domain redirect. This vulnerability arises from the failure to remove the Authorization header when redirecting across domains. The exposure of the Authorization header to unauthorized actors could potentially allow for account hijacking.","status":"published","published":"2024-04-16T00:15:00Z","modified":"2026-02-04T10:51:18.86586Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T16:54:50.784131Z"},{"id":"USN-7476-1","title":"python-scrapy vulnerabilities","description":"It was discovered that Scrapy improperly exposed HTTP authentication \ncredentials to request targets, including during redirects. An attacker \ncould use this issue to gain unauthorized access to user accounts. This\nissue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-41125)\n\nIt was discovered that Scrapy did not remove the cookie header during\ncross-domain redirects. An attacker could possibly use this issue to gain\nunauthorized access to user accounts. This issue only affected Ubuntu 18.04\nLTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-0577)\n\nIt was discovered that Scrapy inefficiently parsed XML content. An\nattacker could use this issue to cause a denial of service by sending a\ncrafted XML response. This issue only affected Ubuntu 18.04 LTS,\nUbuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2024-1892)\n\nIt was discovered that Scrapy did not properly check response size during\ndecompression. An attacker could send a crafted response that would\nexhaust memory and cause a denial of service. This issue only affected\nUbuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2024-3572)\n\nIt was discovered that Scrapy did not remove the authorization header\nduring cross-domain redirects. An attacker could possibly use this issue\nto gain unauthorized access to user accounts. This issue only affected \nUbuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2024-3574)\n\nIt was discovered that Scrapy did not remove the authorization header\nduring redirects that change scheme but remain in the same domain. This\nissue could possibly be used by an attacker to expose sensitive \ninformation or to gain unauthorized access to user accounts.\n(CVE-2024-1968)\n\n","status":"published","published":"2025-05-05T16:31:52Z","modified":"2026-04-27T18:02:20.75951352Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}