nodejs-deep-extend: Prototype pollution can allow attackers to modify object properties
Published Jul 3, 2018
9.8
CRITICALCVSS 3.0
EPSS 2.15%
Description
The utilities function in all versions <= 0.5.0 of the deep-extend node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.
Affected products
No data.
- ≤ 0.5.0
No data.
Red Hat Enterprise Linux 8
nodejs:12-8030020210129141730.229f0a1c
Fixed · RHSA-2021:0549
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-nodejs12-nodejs-0:12.20.1-1.el7
Fixed · RHSA-2021:0485
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7
Fixed · RHSA-2021:0485
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-nodejs8-nodejs-0:8.17.0-2.el7
Fixed · RHSA-2020:2625
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
rh-nodejs12-nodejs-0:12.20.1-1.el7
Fixed · RHSA-2021:0485
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7
Fixed · RHSA-2021:0485
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
rh-nodejs8-nodejs-0:8.17.0-2.el7
Fixed · RHSA-2020:2625
Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS
rh-nodejs12-nodejs-0:12.20.1-1.el7
Fixed · RHSA-2021:0485
Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS
rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7
Fixed · RHSA-2021:0485
Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS
rh-nodejs8-nodejs-0:8.17.0-2.el7
Fixed · RHSA-2020:2625
Red Hat Enterprise Linux 8
nodejs:10/nodejs-nodemon
Fix deferred
Red Hat Mobile Application Platform 4
nodejs-deep-extend
Not affected
Red Hat OpenShift Enterprise 3
nodejs-deep-extend
Not affected
Red Hat Software Collections
rh-nodejs10-nodejs-nodemon
Fix deferred
Red Hat Software Collections
rh-nodejs4-nodejs-deep-extend
Will not fix
Red Hat Software Collections
rh-nodejs6-nodejs-deep-extend
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | nodejs:12-8030020210129141730.229f0a1c | Fixed | RHSA-2021:0549 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-nodejs12-nodejs-0:12.20.1-1.el7 | Fixed | RHSA-2021:0485 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7 | Fixed | RHSA-2021:0485 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-nodejs8-nodejs-0:8.17.0-2.el7 | Fixed | RHSA-2020:2625 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS | rh-nodejs12-nodejs-0:12.20.1-1.el7 | Fixed | RHSA-2021:0485 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS | rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7 | Fixed | RHSA-2021:0485 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS | rh-nodejs8-nodejs-0:8.17.0-2.el7 | Fixed | RHSA-2020:2625 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS | rh-nodejs12-nodejs-0:12.20.1-1.el7 | Fixed | RHSA-2021:0485 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS | rh-nodejs12-nodejs-nodemon-0:2.0.3-1.el7 | Fixed | RHSA-2021:0485 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS | rh-nodejs8-nodejs-0:8.17.0-2.el7 | Fixed | RHSA-2020:2625 |
| Red Hat Enterprise Linux 8 | nodejs:10/nodejs-nodemon | Fix deferred | n/a |
| Red Hat Mobile Application Platform 4 | nodejs-deep-extend | Not affected | n/a |
| Red Hat OpenShift Enterprise 3 | nodejs-deep-extend | Not affected | n/a |
| Red Hat Software Collections | rh-nodejs10-nodejs-nodemon | Fix deferred | n/a |
| Red Hat Software Collections | rh-nodejs4-nodejs-deep-extend | Will not fix | n/a |
| Red Hat Software Collections | rh-nodejs6-nodejs-deep-extend | Will not fix | n/a |
deep-extend
npm
Introduced 0 Fixed 0.5.1
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | deep-extend | 0 | 0.5.1 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.15% (0.02147) | 81.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.15% (0.02147) | 79.66th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.31% (0.00311) | 70.38th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.31% (0.00311) | 69.28th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.31% (0.00311) | 65.95th | v3 (v2023.03.01) |
| May 8, 2023 | 0.33% (0.00326) | 66.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00311) | 65.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v1 |
| Jan 6, 2022 | 0.42% (0.00416) | 9.79th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (9)
- https://access.redhat.com/security/cve/CVE-2018-3750 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1578246 Issue Tracking
- https://github.com/advisories/GHSA-hr2v-3952-633q Advisory
- https://github.com/unclechu/node-deep-extend/commit/9423fae877e2ab6b4aecc4db79a0ed63039d4703
- https://hackerone.com/reports/311333 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://nodesecurity.io/advisories/612
- https://nvd.nist.gov/vuln/detail/CVE-2018-3750
- https://www.cve.org/CVERecord?id=CVE-2018-3750
- https://www.npmjs.com/advisories/612
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-3750 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1578246 | Issue Tracking | |
| https://github.com/advisories/GHSA-hr2v-3952-633q | Advisory | |
| https://github.com/unclechu/node-deep-extend/commit/9423fae877e2ab6b4aecc4db79a0ed63039d4703 | ||
| https://hackerone.com/reports/311333 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://nodesecurity.io/advisories/612 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2018-3750 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-3750 | ||
| https://www.npmjs.com/advisories/612 |
Change history (0)
No recorded changes yet.