WS-2020-0091 | Mend Vulnerability Database

Vulnerability DatabaseWS-2020-0091

WS-2020-0091

Published:May 19, 2026

Updated:May 20, 2026

Versions of http-proxy prior to 1.18.1 are vulnerable to Denial of Service. An HTTP request with a long body triggers an ERR_HTTP_HEADERS_SENT unhandled exception that crashes the proxy server. This is only possible when the proxy server sets headers in the proxy request using the proxyReq.setHeader function.

Affected Packages

jsdom (CONDA):

Affected version(s) =11.0.0 <11.11.0

Fix Suggestion:

Update to version 11.11.0

code-server (CONDA):

Affected version(s) >=3.2.0 <3.5.0

Fix Suggestion:

Update to version 3.5.0

configurable-http-proxy (CONDA):

Affected version(s) >=1.2.0 <4.2.3

Fix Suggestion:

Update to version 4.2.3

spyder-terminal (CONDA):

Affected version(s) >=0.3.0 <0.4.0

Fix Suggestion:

Update to version 0.4.0

http-proxy (NPM):

Affected version(s) >=0.5.9 <1.18.1

Fix Suggestion:

Update to version 1.18.1

dotnetng.template (NUGET):

Affected version(s) >=1.0.0.1 <1.0.0.4

Fix Suggestion:

Update to version 1.0.0.4

pwptemplatecms (NUGET):

Affected version(s) >=0.0.1 <=0.0.2

Fix Suggestion:

Update to version no_fix

pwptemplatepusintek (NUGET):

Affected version(s) =0.0.1

Fix Suggestion:

Update to version no_fix

indianadavy.vuejswebapitemplate.csharp (NUGET):

Affected version(s) =1.0.0 <1.0.1

Fix Suggestion:

Update to version 1.0.1

sheelersoft.angulartemplate (NUGET):

Affected version(s) >=0.0.1 <=0.0.2

Fix Suggestion:

Update to version no_fix

fable.template.elmish.react (NUGET):

Affected version(s) =0.1.5 <0.1.6

Fix Suggestion:

Update to version 0.1.6

nordron.angulartemplate (NUGET):

Affected version(s) =0.1.5 <0.1.6

Fix Suggestion:

Update to version 0.1.6

gr.pagerender.razor (NUGET):

Affected version(s) >=1.6.0 <1.8.0

Fix Suggestion:

Update to version 1.8.0

karmanodemodules (NUGET):

Affected version(s) >=1.0.0 <=1.0.1

Fix Suggestion:

Update to version no_fix

sheeler.angulartemplate (NUGET):

Affected version(s) =0.0.1

Fix Suggestion:

Update to version no_fix

vuejs.netcore (NUGET):

Affected version(s) >=1.0.2 <1.1.1

Fix Suggestion:

Update to version 1.1.1

midiator.webclient (NUGET):

Affected version(s) >=1.0.98 <1.0.105

Fix Suggestion:

Update to version 1.0.105

nolimits4web/framework7-icons (PHP):

Affected version(s) >=v2.0.0 <v3.0.1

Fix Suggestion:

Update to version v3.0.1

zymawy/ironside-core (PHP):

Affected version(s) =dev-master <dev-utils

Fix Suggestion:

Update to version dev-utils

chrisbraybrooke/laravel-ecommerce (PHP):

Affected version(s) >=0.0.4 <0.0.17

Fix Suggestion:

Update to version 0.0.17

postboxcms/postbox (PHP):

Affected version(s) >=dev-dependabot/npm_and_yarn/url-parse-1.5.3 <dev-dependabot/npm_and_yarn/url-parse-1.5.10

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/url-parse-1.5.10

postboxcms/postbox (PHP):

Affected version(s) =dev-dependabot/npm_and_yarn/ssri-6.0.2 <dev-dependabot/npm_and_yarn/ws-6.2.2

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/ws-6.2.2

novum/innovation-app-core (PHP):

Affected version(s) >=dev-code-cleanup <dev-temp-commit

Fix Suggestion:

Update to version dev-temp-commit

mayronalves/laravel-core (PHP):

Affected version(s) >=v1.0.0 <dev-dependabot/composer/symfony/mime-4.4.1

Fix Suggestion:

Update to version dev-dependabot/composer/symfony/mime-4.4.1

scancode/portal-module (PHP):

Affected version(s) >=v0.0.1 <dev-dependabot/npm_and_yarn/Resources/assets/coreui/decode-uri-component-0.2.2

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/Resources/assets/coreui/decode-uri-component-0.2.2

bizprove/canvas (PHP):

Affected version(s) =dev-master <v1.0

Fix Suggestion:

Update to version v1.0

mmi/mmi-cms (PHP):

Affected version(s) >=2.2.9.1 <2.3.1

Fix Suggestion:

Update to version 2.3.1

miljoen/nova-autofill (PHP):

Affected version(s) =dev-master <v1.0.0

Fix Suggestion:

Update to version v1.0.0

mahlamusa/material-php (PHP):

Affected version(s) =dev-use-mdc-web <1.0.0

Fix Suggestion:

Update to version 1.0.0

scancode/portal-module (PHP):

Affected version(s) >=v1.0.0 <dev-dependabot/npm_and_yarn/Resources/assets/coreui/path-parse-1.0.7

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/Resources/assets/coreui/path-parse-1.0.7

postboxcms/postbox (PHP):

Affected version(s) >=dev-dependabot/composer/symfony/http-foundation-4.4.8 <dev-dependabot/npm_and_yarn/browserslist-4.16.6

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/browserslist-4.16.6

horizon/description (PHP):

Affected version(s) =dev-dependabot/npm_and_yarn/lodash-4.17.19

Fix Suggestion:

Update to version no_fix

oburatongoi/productivity (PHP):

Affected version(s) >=0.3.36 <=0.4.45

Fix Suggestion:

Update to version no_fix

miljoen/nova-autofill (PHP):

Affected version(s) >=v1.2 <=v1.4

Fix Suggestion:

Update to version no_fix

postboxcms/postbox (PHP):

Affected version(s) =dev-dependabot/npm_and_yarn/axios-0.21.1 <dev-sanketraut-patch-1

Fix Suggestion:

Update to version dev-sanketraut-patch-1

scancode/portal-module (PHP):

Affected version(s) >=v1.0.7 <v1.0.12

Fix Suggestion:

Update to version v1.0.12

trezebits/trezevel-gallery (PHP):

Affected version(s) =dev-master

Fix Suggestion:

Update to version no_fix

chrisbraybrooke/laravel-ecommerce (PHP):

Affected version(s) =dev-dev <dev-form-field-key

Fix Suggestion:

Update to version dev-form-field-key

flexxia/flexprimeng (PHP):

Affected version(s) =dev-anguarJs-v7 <dev-dependabot/npm_and_yarn/css/postcss/y18n-3.2.2

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/css/postcss/y18n-3.2.2

devsfort/fortblog (PHP):

Affected version(s) >=dev-dev <=1.0.1

Fix Suggestion:

Update to version no_fix

efecanaltay/hello-world (PHP):

Affected version(s) =dev-master

Fix Suggestion:

Update to version no_fix

postboxcms/postbox (PHP):

Affected version(s) >=dev-dependabot/npm_and_yarn/elliptic-6.5.4 <dev-feature/ISSUE-39

Fix Suggestion:

Update to version dev-feature/ISSUE-39

gheb/nn (PHP):

Affected version(s) =dev-installed-example <dev-master

Fix Suggestion:

Update to version dev-master

postboxcms/postbox (PHP):

Affected version(s) =dev-master <dev-package/dbo

Fix Suggestion:

Update to version dev-package/dbo

flexxia/flexprimeng (PHP):

Affected version(s) >=dev-dev-demo-primeng-chart <dev-update-angularjs

Fix Suggestion:

Update to version dev-update-angularjs

horizon/description (PHP):

Affected version(s) =dev-master <dev-dependabot/npm_and_yarn/axios-0.21.1

Fix Suggestion:

Update to version dev-dependabot/npm_and_yarn/axios-0.21.1

chrisbraybrooke/laravel-ecommerce (PHP):

Affected version(s) =0.0.1 <0.0.2

Fix Suggestion:

Update to version 0.0.2

oburatongoi/productivity (PHP):

Affected version(s) =dev-master <0.0.1

Fix Suggestion:

Update to version 0.0.1

mpcmf/mpcmf-web-app (PHP):

Affected version(s) =dev-master <1.0.0.x-dev

Fix Suggestion:

Update to version 1.0.0.x-dev

mpcmf/mpcmf-web-app (PHP):

Affected version(s) =dev-php7

Fix Suggestion:

Update to version no_fix

chrisbraybrooke/laravel-ecommerce (PHP):

Affected version(s) >=v0.0.17 <0.0.56

Fix Suggestion:

Update to version 0.0.56

spyder-terminal (PYTHON):

Affected version(s) >=0.3.0 <0.4.0

Fix Suggestion:

Update to version 0.4.0

rustimate-client (RUST):

Affected version(s) >=0.0.1 <=0.1.0

Fix Suggestion:

Update to version no_fix

moxie-dom (RUST):

Affected version(s) =0.1.0 <0.1.1-alpha.0

Fix Suggestion:

Update to version 0.1.1-alpha.0

Related Resources (1)

https://github.com/http-party/node-http-proxy/pull/1447

Do you need more information?

CVSS v4

Base Score:

8.7

Attack Vector

NETWORK

Attack Complexity

LOW

Attack Requirements

NONE

Privileges Required

NONE

User Interaction

NONE

Vulnerable System Confidentiality

NONE

Vulnerable System Integrity

NONE

Vulnerable System Availability

HIGH

Subsequent System Confidentiality

NONE

Subsequent System Integrity

NONE

Subsequent System Availability

NONE

CVSS v3

Base Score:

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH