CVE-2018-19052
CVSS v3
7.5
HIGH
EPSS Score
13.7 %
exploit probability, as of 2026-10-04
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2018-11-07
Frequently asked questions
What is 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.
Is CVE-2018-19052 actively exploited?
Active exploitation of CVE-2018-19052 has not been confirmed. Its EPSS score was 13.7% on 2026-10-04, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-19052?
CVE-2018-19052 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2018-19052 affecting your environment?
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