{"id":"UBUNTU-CVE-2022-27780","details":"The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.","modified":"2026-01-30T01:57:33.045705Z","published":"2022-05-11T00:00:00Z","related":["USN-5412-1"],"upstream":["CVE-2022-27780"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-27780"},{"type":"REPORT","url":"https://curl.se/docs/CVE-2022-27780.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5412-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-27780"}],"affected":[{"package":{"name":"curl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/curl@7.81.0-1ubuntu1.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.81.0-1ubuntu1.2"}]}],"versions":["7.74.0-1.3ubuntu2","7.74.0-1.3ubuntu3","7.80.0-3","7.81.0-1","7.81.0-1ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"7.81.0-1ubuntu1.2","binary_name":"curl"},{"binary_version":"7.81.0-1ubuntu1.2","binary_name":"libcurl3-gnutls"},{"binary_version":"7.81.0-1ubuntu1.2","binary_name":"libcurl3-nss"},{"binary_version":"7.81.0-1ubuntu1.2","binary_name":"libcurl4"},{"binary_version":"7.81.0-1ubuntu1.2","binary_name":"libcurl4-gnutls-dev"},{"binary_version":"7.81.0-1ubuntu1.2","binary_name":"libcurl4-nss-dev"},{"binary_version":"7.81.0-1ubuntu1.2","binary_name":"libcurl4-openssl-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-27780.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}