PatchTheCVECVE-2022-3212: <bytes::Bytes as axum_core::extract::FromRequest>::from_request would not, by default, set a limit for the siz
CVE-2022-3212 is a high-severity flaw (CVSS 7.5) affecting axum-core. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
<bytes::Bytes as axum_core::extract::FromRequest>::from_request would not, by default, set a limit for the size of the request body. That meant if a malicious peer would send a very large (or infinite) body your server might run out of memory and crash. This also applies to these extractors which used Bytes::from_request internally: axum::extract::Form axum::extract::Json String
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.0% (top 37%) |
| CISA exploited list | No |
| Weakness | CWE-770 |
| Published | 2022-09-14 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-3212?
axum-core: upgrade to 0.2.8. Exact commands for each OS are on this page.
Is CVE-2022-3212 being exploited?
CVE-2022-3212 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-3212 affect?
CVE-2022-3212 affects axum-core. Severity is high (CVSS 7.5). <bytes::Bytes as axum_core::extract::FromRequest>::from_request would not, by default, set a limit for the size of the request body. That meant if a malicious peer would send a very large (or infinite) body your server might run out of memo
How urgent is CVE-2022-3212?
Priority 52/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action