CVE-2018-19052

An issue was discovered in mod_alias_physical_handler in mod_alias.c in lighttpd before 1.4.50. There is potential ../ path traversal of a single directory above an alias target, with a specific mod_alias configuration where the matched alias lacks a trailing '/' character, but the alias target filesystem path does have a trailing '/' character.

• CWE-22

• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00054.htmlMailing List, Third Party Advisory
• https://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1Exploit, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2022/01/msg00012.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00054.htmlMailing List, Third Party Advisory
• https://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1Exploit, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2022/01/msg00012.htmlMailing List, Third Party Advisory

Published

Nov 7, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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