CVE-2021-36044 | Magento Commerce GraphQL Improper Input Validation Could Lead To Denial Of Service

Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an improper input validation vulnerability. An unauthenticated attacker could abuse this vulnerability to cause a server-side denial-of-service using a GraphQL field.

Published: 2021-09-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-36044 is rated Moderate Risk (57.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.01%). 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-2021-36044

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 2026-06-25 1.95% 2.01% +0.06%
2 2026-06-15 1.74% 1.95% +0.21%
3 2026-01-05 — 1.74% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-36044

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2021-36044

GitHub Security Advisory for CVE-2021-36044

GHSA-wr57-3h2f-3q95 · Severity: high · Ecosystem: composer — Magento affected by a server-side denial-of-service using a GraphQL field

Affected software / configurations for CVE-2021-36044

Vendor Product Version Raw CPE
adobe adobe_commerce >= 2.3.0, <= 2.3.7 cpe:2.3:a:adobe:adobe_commerce:*:*:*:*:*:*:*:*
adobe adobe_commerce >= 2.4.0, <= 2.4.2 cpe:2.3:a:adobe:adobe_commerce:*:*:*:*:*:*:*:*
adobe adobe_commerce 2.4.2 cpe:2.3:a:adobe:adobe_commerce:2.4.2:p1:*:*:*:*:*:*
adobe magento_open_source >= 2.3.0, <= 2.3.7 cpe:2.3:a:adobe:magento_open_source:*:*:*:*:*:*:*:*
adobe magento_open_source >= 2.4.0, <= 2.4.2 cpe:2.3:a:adobe:magento_open_source:*:*:*:*:*:*:*:*
adobe magento_open_source 2.4.2 cpe:2.3:a:adobe:magento_open_source:2.4.2:p1:*:*:*:*:*:*

References for CVE-2021-36044

cvelogic Threat Intelligence