HOMEVULNERABILITIESCVE-2022-26377
HIGH

CVE-2022-26377

CWE-444Published: June 9, 2022· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2022-26377 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

Apache1 product(s)
http server
Fedora1 product(s)
fedora
netapp1 product(s)
clustered data ontap
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/06/08/2
ADVISORYhttps://httpd.apache.org/security/vulnerabilities_24.html
ADVISORYhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7QUGG2QZWHTITMABFLVXA4DNYUOTPWYQ/
ADVISORYhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPY2BLEVJWFH34AX77ZJPLD2OOBYR6ND/
ADVISORYhttps://security.gentoo.org/glsa/202208-20
ADVISORYhttps://security.netapp.com/advisory/ntap-20220624-0005/
ADVISORYhttp://www.openwall.com/lists/oss-security/2022/06/08/2
ADVISORYhttps://httpd.apache.org/security/vulnerabilities_24.html
ADVISORYhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7QUGG2QZWHTITMABFLVXA4DNYUOTPWYQ/
ADVISORYhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPY2BLEVJWFH34AX77ZJPLD2OOBYR6ND/
ADVISORYhttps://security.gentoo.org/glsa/202208-20
ADVISORYhttps://security.netapp.com/advisory/ntap-20220624-0005/

All References (12)

→
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

Quick Facts

CVE IDCVE-2022-26377
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-444
CISA KEVNo
Affected3 vendor(s)
PublishedJun 9, 2022

Related CVEs (CWE-444)

CVE-2025-1867
10.0
CVE-2018-3907
10.0
CVE-2025-55315
9.9
CVE-2026-41873
9.8
CVE-2026-23527
9.8
CVE-2024-10264
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-26377 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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