CVE-2023-22465

unknown

Published 2023-01-06 · Modified 2025-12-11

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

—

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

—

Description

Http4s improperly parses User-Agent and Server headers

Predictions

Exploit likelihood

30%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Maven	org.http4s:http4s-core_2.13	`>=0.1.0,<0.21.34`	`0.21.34`
Maven	org.http4s:http4s-core_2.13	`>=0.22.0,<0.22.15`	`0.22.15`
Maven	org.http4s:http4s-core_2.13	`>=0.23.0,<0.23.17`	`0.23.17`
Maven	org.http4s:http4s-core_2.13	`>=1.0.0-M1,<1.0.0-M38`	`1.0.0-M38`
Maven	org.http4s:http4s-core_2.10	`>=0.1.0,<=0.9.3`
Maven	org.http4s:http4s-core_2.11	`>=0.1.0,<=0.21.0-M1`
Maven	org.http4s:http4s-core_2.12	`>=0.1.0,<0.21.34`	`0.21.34`
Maven	org.http4s:http4s-core_2.12	`>=0.22.0,<0.22.15`	`0.22.15`
Maven	org.http4s:http4s-core_2.12	`>=0.23.0,<0.23.17`	`0.23.17`
Maven	org.http4s:http4s-core	`>=1.0.0-M1,<=1.0.0-M30`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.