CVE-2021-32721

URL Redirection to Untrusted Site ('Open Redirect') in github.com/AndrewBurian/powermux

MEDIUM
6.1
CVSS Score
Published: June 29, 2021 at 06:40 PM UTC
Updated: June 17, 2026 at 03:53 AM UTC
2 products affected across 2 vendorsPowermuxProject Powermux

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.6%

Description

PowerMux is a drop-in replacement for Go's http.ServeMux. In PowerMux versions prior to 1.1.1, attackers may be able to craft phishing links and other open redirects by exploiting the trailing slash redirection feature. This may lead to users being redirected to untrusted sites after following an attacker crafted link. The issue is resolved in v1.1.1. There are no existing workarounds.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.1.1
Affected range stops below 1.1.1, so it looks safe — our inference, not a vendor statement
v < 1.1.1
Affected range stops below 1.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-601

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