CVE-2021-39185: falha crítica em http4s
Default CORS config allows any origin with credentials
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
28Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 9.1epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Produtos afetados
http4s · http4sCVEs relacionadas — http4s
No mesmo produto, das mais perigosas para as menos.
CVE-2020-5280HIGHLocal file inclusion vulnerability in http4sEPSS 7.0%CVE-2021-21294HIGHUnbounded connection acceptance in http4s-blaze-serverEPSS 2.2%CVE-2021-32643MEDIUMStaticFile.fromUrl can leak presence of a directoryEPSS 1.4%CVE-2021-41084HIGHResponse Splitting from unsanitized headers in http4sEPSS 1.2%CVE-2023-22465HIGHHttp4s has fatal error parsing User-Agent and Server headersEPSS 0.9%CVE-2026-69208HIGHHttp4s: DigestAuth nonce map grows unboundedEPSS 0.8%