CVE-2023-27522
Apache HTTP Server via mod_proxy_uwsgi HTTP response smuggling
7.5
HIGH
CVSS 3.1
EPSS 0.67%
Description
HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.55. Special characters in the origin response header can truncate/split the response forwarded to the client.
How to fix CVE-2023-27522
To remediate CVE-2023-27522, upgrade the affected package to a fixed version below.
- —upgrade to 2.4.56-r0 or later
- —upgrade to 2.4.56 or later
- —upgrade to 2.4.56-1~deb11u1 or later
- —upgrade to 2.0.22 or later
Is CVE-2023-27522 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2.4.56-r0
- >= 2.4.30, < 2.4.56
- from 0, < 2.4.56-1~deb11u1
- from 0, < 2.0.22
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |