CVE-2022-2564 | Prototype Pollution in automattic/mongoose

Exp

Prototype Pollution in GitHub repository automattic/mongoose prior to 6.4.6.

Published: 2022-07-28 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-2564 is rated High Exploit Risk (93.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 32.68%, 98th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +29.75% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2022-2564

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-2564

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 2026-06-15 2.93% 32.68% +29.75%
2 2026-02-04 1.16% 2.93% +1.77%
3 2026-02-02 — 1.16% —

Full EPSS history (25 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-2564

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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.
 3.9 5.9 [email protected]
7.0 3.0 HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/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:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 4.7 [email protected]

Weakness enumeration for CVE-2022-2564

GitHub Security Advisory for CVE-2022-2564

GHSA-f825-f98c-gj3g · Severity: high · Ecosystem: npm — automattic/mongoose vulnerable to Prototype pollution via Schema.path

Affected software / configurations for CVE-2022-2564

Vendor Product Version Raw CPE
mongoosejs mongoose < 5.13.15 cpe:2.3:a:mongoosejs:mongoose:*:*:*:*:*:node.js:*:*
mongoosejs mongoose >= 6.0.0, < 6.4.6 cpe:2.3:a:mongoosejs:mongoose:*:*:*:*:*:node.js:*:*

References for CVE-2022-2564

cvelogic Threat Intelligence