CVE-2022-26377

Name: CVE-2022-26377
Creator: NVD / NIST
Published: 2022-06-09T17:15:09.077+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 19.01%

Last modified Jun 17, 2026

CVE-2022-26377 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.. EPSS estimates a 19.01% chance of exploitation in the next 30 days.

Description

Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

19.01%

96.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apache	Http Server	>= 2.4.0, < 2.4.54
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36
Netapp	Clustered Data Ontap	All versions

References

http://www.openwall.com/lists/oss-security/2022/06/08/2Mailing List, Third Party Advisory
https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7QUGG2QZWHTITMABFLVXA4DNYUOTPWYQ/Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPY2BLEVJWFH34AX77ZJPLD2OOBYR6ND/Third Party Advisory
https://security.gentoo.org/glsa/202208-20Third Party Advisory
https://security.netapp.com/advisory/ntap-20220624-0005/Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/06/08/2Mailing List, Third Party Advisory
https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7QUGG2QZWHTITMABFLVXA4DNYUOTPWYQ/Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPY2BLEVJWFH34AX77ZJPLD2OOBYR6ND/Third Party Advisory
https://security.gentoo.org/glsa/202208-20Third Party Advisory
https://security.netapp.com/advisory/ntap-20220624-0005/Third Party Advisory

Timeline

Published: Jun 9, 2022
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2022-26377?

How severe is CVE-2022-26377?

CVE-2022-26377 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 19.01% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26377?

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.

Are you affected by CVE-2022-26377?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST