CVE-2020-5280

high

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

https://github.com/http4s/http4s/security/advisories/GHSA-66q9-f7ff-mmx6

https://github.com/http4s/http4s/commit/b87f31b2292dabe667bec3b04ce66176c8a3e17b

https://github.com/http4s/http4s/commit/752b3f63a05a31d2de4f8706877aa08d6b89efca

https://github.com/http4s/http4s/commit/250afddbb2e65b70ca9ddaec9d1eb3aaa56de7ec

Details

Source: Mitre, NVD

Published: 2020-03-25

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

EPSS

EPSS: 0.00848