PatchTheCVECVE-2022-2255: A vulnerability was found in mod_wsgi
CVE-2022-2255 is a high-severity flaw (CVSS 7.5) affecting mod wsgi, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability was found in mod_wsgi. The X-Client-IP header is not removed from a request from an untrusted proxy, allowing an attacker to pass the X-Client-IP header to the target WSGI application because the condition to remove it is missing.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
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-2022-2255?
mod wsgi: upgrade to 4.9.3; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2022-2255 being exploited?
CVE-2022-2255 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-2022-2255 affect?
CVE-2022-2255 affects mod wsgi, debian linux. Severity is high (CVSS 7.5). A vulnerability was found in mod_wsgi. The X-Client-IP header is not removed from a request from an untrusted proxy, allowing an attacker to pass the X-Client-IP header to the target WSGI application because the condition to remove it is mi
How urgent is CVE-2022-2255?
Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist