CVE-2021-41097

Prototype pollution in aurelia-path

HIGH
7.5
CVSS Score
Published: September 27, 2021 at 05:40 PM UTC
Updated: June 17, 2026 at 04:07 AM UTC
2 products affected across 2 vendorsAurelia PathAurelia Path

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Severity
HIGH7.5
Exploit prediction
EPSS 5%

Description

aurelia-path is part of the Aurelia platform and contains utilities for path manipulation. There is a prototype pollution vulnerability in aurelia-path before version 1.1.7. The vulnerability exposes Aurelia application that uses `aurelia-path` package to parse a string. The majority of this will be Aurelia applications that employ the `aurelia-router` package. An example is this could allow an attacker to change the prototype of base object class `Object` by tricking an application to parse the following URL: `https://aurelia.io/blog/?__proto__[asdf]=asdf`. The problem is patched in version `1.1.7`.

Affected

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

v < 1.1.7
Affected range stops below 1.1.7, so it looks safe — our inference, not a vendor statement
v < 1.1.7
Affected range stops below 1.1.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

x_refsource_MISCExploitIssue TrackingThird Party Advisory
https://github.com/aurelia/path/issues/44
x_refsource_MISCRelease NotesThird Party Advisory
https://github.com/aurelia/path/releases/tag/1.1.7
x_refsource_MISCProductThird Party Advisory
https://www.npmjs.com/package/aurelia-path

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1321

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