CVE-2026-63718 Apache HTTP Server - HTTP Request/Response Smuggling

Apache HTTP Server 2.4.30 through 2.4.68 contains an HTTP request/response smuggling vulnerability caused by inconsistent interpretation of HTTP requests in mod_proxy_uwsgi with crafted uwsgi responses, letting remote attackers perform request smuggling.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.50% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
HTTP Request/Response Smuggling
Impact
HTTP Request Smuggling
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
1 October 2026
Updated
15 October 2026
Weakness
CWE-444

Vendor fix

Upgrade to a version later than 2.4.68 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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