Vulnerability in Apache HTTP Server
CVE-2022-26377
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.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.211 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.211 · newest: 0.211 · change: 0.000
Affected products
- Apache HTTP Server
- Apache Software Foundation HTTP Server — versions Apache HTTP Server 2.4
- NetApp Clustered Data Ontap
- Fedoraproject Fedora — versions 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- httpd.apache.org/security/vulnerabilities_24.html (Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/06/08/2 (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220624-0005/ (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202208-20 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-26377?
- CVE-2022-26377 is a high-severity vulnerability in Apache HTTP Server, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.5/10. Published 2022-06-09.
- How severe is CVE-2022-26377?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-26377 known to be exploited?
- 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.