CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LCVE-2023-22465
Medium (5.3) in typelevel http4s. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in org.http4s:http4s-core_2.13 0.21.34, 0.22.15, 0.23.17.
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.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- typelevel:http4s
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| 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 | Maven | org.http4s:http4s-core_2.10 | >=0.1.0 <=0.9.3 | no fix published |
| GHSA-54w6-vxfh-fw7f | Maven | org.http4s:http4s-core_2.11 | >=0.1.0 <=0.21.0-M1 | no fix published |
| 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 | >=1.0.0-M1 <=1.0.0-M30 | no fix published |