Skip to content
OpenAdvisories
High · 7.5 CVE-2023-22465 EUVD-2023-0335GHSA-54w6-vxfh-fw7f

Http4s has fatal error parsing User-Agent and Server headers

Published Jan 4, 2023 · Updated Mar 10, 2025 · Assigned by GitHub_M

Description

Http4s is a Scala interface for HTTP services. Starting with version 0.1.0 and prior to versions 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38, the `User-Agent` and `Server` header parsers are susceptible to a fatal error on certain inputs. In http4s, modeled headers are lazily parsed, so this only applies to services that explicitly request these typed headers. Fixes are released in 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38. As a workaround, use the weakly typed header interface.

Affected products

VendorProductAffectedFixed
http4s http4s >= 0.1.0, < 0.21.34, >= 0.22.0, < 0.22.15, >= 0.23.0, < 0.23.17, >= 1.0.0-M1, < 1.0.0-M38 —

Affected packages

EcosystemPackageAffectedFixedRecord
Maven org.http4s:http4s-core >= 1.0.0-M1, <= 1.0.0-M30 — GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.10 >= 0.1.0, <= 0.9.3 — GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.11 >= 0.1.0, <= 0.21.0-M1 — GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.12 >= 0.1.0, < 0.21.34 0.21.34 GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.12 >= 0.22.0, < 0.22.15 0.22.15 GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.12 >= 0.23.0, < 0.23.17 0.23.17 GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.13 >= 0.1.0, < 0.21.34 0.21.34 GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.13 >= 0.22.0, < 0.22.15 0.22.15 GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.13 >= 0.23.0, < 0.23.17 0.23.17 GHSA-54w6-vxfh-fw7f
Maven org.http4s:http4s-core_2.13 >= 1.0.0-M1, < 1.0.0-M38 1.0.0-M38 GHSA-54w6-vxfh-fw7f

References