CVE-2023-22465
MEDIUM
Published Jan 4, 20233y ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Published Jan 4, 2023 3y ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability Low
Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 1
CWE-20 Improper Input Validation Validation
Affected Products 40
| Vendor | Product | Version | Range |
|---|---|---|---|
| typelevel | http4s | * | ≥0.1.0 – <0.21.34 |
| typelevel | http4s | * | ≥0.22.0 – <0.22.15 |
| typelevel | http4s | * | ≥0.23.0 – <0.23.17 |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
| typelevel | http4s | 1.0.0 | any |
References 1
- github.com https://github.com/http4s/http4s/security/advisories/GHSA-54w6-vxfh-fw7f
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.