Description
http4s before versions 0.18.26, 0.20.20, and 0.21.2 has a local file inclusion vulnerability. This vulnerability applies to all users of org.http4s.server.staticcontent.FileService, org.http4s.server.staticcontent.ResourceService and org.http4s.server.staticcontent.WebjarService. URI normalization is applied incorrectly. Requests whose path info contain ../ or // can expose resources outside of the configured location. This issue is patched in versions 0.18.26, 0.20.20, and 0.21.2. Note that 0.19.0 is a deprecated release and has never been supported.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://github.com/http4s/http4s/security/advisories/GHSA-66q9-f7ff-mmx6
Patch x_refsource_misc
https://github.com/http4s/http4s/commit/250afddbb2e65b70ca9ddaec9d1eb3aaa56de7ec
Patch x_refsource_misc
https://github.com/http4s/http4s/commit/752b3f63a05a31d2de4f8706877aa08d6b89efca
Patch x_refsource_misc
https://github.com/http4s/http4s/commit/b87f31b2292dabe667bec3b04ce66176c8a3e17b
Scores
CVSS v3
7.6
EPSS
0.0085
EPSS Percentile
75.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Details
CWE
CWE-22
CWE-23
Status
published
Products (2)
org.http4s/http4s-server_2.12
0 - 0.18.26Maven
typelevel/http4s
< 0.18.26
Published
Mar 25, 2020
Tracked Since
Feb 18, 2026