CVE-2020-36604

hoek before 8.5.1 and 9.x before 9.0.3 allows prototype poisoning in the clone function.

Published: 2022-09-23 Last update: 2025-05-27 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-36604 is rated Moderate Risk (59.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.99%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-36604

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-10-23 0.76% 0.99% +0.23%
2 2025-10-11 0.67% 0.76% +0.09%
3 2025-06-15 — 0.67% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-36604

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2020-36604

GitHub Security Advisory for CVE-2020-36604

GHSA-c429-5p7v-vgjp · Severity: high · Ecosystem: npm — hoek subject to prototype pollution via the clone function.

OS Trackers for CVE-2020-36604

vendor priority summary link
debian not yet assigned CVE-2020-36604 not yet assigned priority: Debian including 1 source packages (node-hoek), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-36604
redhat medium — https://access.redhat.com/security/cve/CVE-2020-36604
ubuntu medium CVE-2020-36604 medium priority: Ubuntu including 1 source packages (node-hoek), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 8, ignored 2, needs-triage 2, released 1. https://ubuntu.com/security/CVE-2020-36604

Affected software / configurations for CVE-2020-36604

Vendor Product Version Raw CPE
hapijs hoek < 8.5.1 cpe:2.3:a:hapijs:hoek:*:*:*:*:*:node.js:*:*
hapijs hoek >= 9.0, < 9.0.3 cpe:2.3:a:hapijs:hoek:*:*:*:*:*:node.js:*:*

References for CVE-2020-36604

cvelogic Threat Intelligence