CVE-2021-39185

Description

Http4s is a minimal, idiomatic Scala interface for HTTP services. In http4s versions 0.21.26 and prior, 0.22.0 through 0.22.2, 0.23.0, 0.23.1, and 1.0.0-M1 through 1.0.0-M24, the default CORS configuration is vulnerable to an origin reflection attack. The middleware is also susceptible to a Null Origin Attack. The problem is fixed in 0.21.27, 0.22.3, 0.23.2, and 1.0.0-M25. The original `CORS` implementation and `CORSConfig` are deprecated. See the GitHub GHSA for more information, including code examples and workarounds.

Reserved 2021-08-16 | Published 2021-09-01 | Updated 2024-08-04 | Assigner GitHub_M

Problem types

CWE-346: Origin Validation Error

Product status

< 0.21.27
affected

>= 0.22.0, < 0.22.3
affected

>= 0.23.0, < 0.23.2
affected

>= 1.0.0-M1, <= 1.0.0-M24
affected

References

github.com/...http4s/security/advisories/GHSA-52cf-226f-rhr6

github.com/http4s/http4s/releases/tag/v0.23.2

cve.org (CVE-2021-39185)

nvd.nist.gov (CVE-2021-39185)

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