CVE-2019-17567

mediumpriority · track · 42EPSS 0.603 · 99 %ileDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

60.3% (99th) EPSS

CVSS 5 · medium

Is it mine?

43 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-25

Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-444USprimaryCWE-444US

affected products (43)

Products and version ranges known to be affected.

Juniper JUNOSall versionscert_bundDEcpe:/o:juniper:junos:-
Apache Software Foundation Apache HTTP Server≤ 2.4.12enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.46enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.26enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.41enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.7enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.16enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.6enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.37enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.33enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.20enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.34enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.18enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.25enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.28enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.23enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.43enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.10enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.27enisa_euvdEU
Apache Software Foundation Apache HTTP Server≤ 2.4.17enisa_euvdEU

showing 20 of 43

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0438Apache HTTP Server: Mehrere SchwachstellenDeutsch2021-06-09csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache HTTP Server ausnutzen, um einen Denial of Service Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder sonstige Auswirkungen zu verursachen.
WID-SEC-W-2024-1591Juniper JUNOS: Mehrere SchwachstellenDeutsch2024-07-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen, Privilegien zu erweitern und Sicherheitsmechanismen inklusive zu umgehen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2021-06-10modified 2026-06-17

related (550)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-48710US	medium6.5OT critical	70.3% (99th)	KEV	2026-05-26
Starlette is a lightweight ASGI framework/toolkit. Prior to version 1.0.1, the HTTP `Host` request header was not validated before being used to reconstruct `request.url`. Because…
CVE-2025-61884US	—OT critical	95.9% (100th)	KEV	2025-10-12
Vulnerability in the Oracle Configurator product of Oracle E-Business Suite (component: Runtime UI). Supported versions that are affected are 12.2.3-12.2.14. Easily exploitable vu…
CVE-2023-48365US	critical9.9OT critical	47.7% (99th)	KEV	2023-11-15
Qlik Sense Enterprise for Windows before August 2023 Patch 2 allows unauthenticated remote code execution, aka QB-21683. Due to improper validation of HTTP headers, a remote attack…
CVE-2023-41265US	critical9.9OT critical	88.2% (100th)	KEV	2023-08-29
An HTTP Request Tunneling vulnerability found in Qlik Sense Enterprise for Windows for versions May 2023 Patch 3 and earlier, February 2023 Patch 7 and earlier, November 2022 Patch…
CVE-2022-22536US	critical10.0OT critical	97.9% (100th)	KEV	2022-02-09
SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53 and SAP Web Dispatcher are vulnerable for request smuggling and…

+545 more

references (43)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan