CVE-2022-31394
HIGHCVSS 7.5/10EPSS 1.08%
Last modified
CVE-2022-31394 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party software, allowing attackers to perform HTTP2 attacks.. EPSS estimates a 1.08% chance of exploitation in the next 30 days.
Description
Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party software, allowing attackers to perform HTTP2 attacks.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hyper | Hyper | < 0.14.19 |
References
- https://github.com/hyperium/hyper/issues/2826Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/hyperium/hyper/pull/2828Issue Tracking, Patch
- https://github.com/hyperium/hyper/issues/2826Exploit, Issue Tracking, Patch, Vendor Advisory
- https://github.com/hyperium/hyper/pull/2828Issue Tracking, Patch
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-31394?
Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party software, allowing attackers to perform HTTP2 attacks.
How severe is CVE-2022-31394?
CVE-2022-31394 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.
How do I fix CVE-2022-31394?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2022-31394?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST