CVE-2026-33756 | Saleor Affected by Denial of Service via Unbounded GraphQL Query Batching

Saleor is an e-commerce platform. From 2.0.0 to before 3.23.0a3, 3.22.47, 3.21.54, and 3.20.118, Saleor supports query batching by submitting multiple GraphQL operations in a single HTTP request as a JSON array but wasn't enforcing any upper limit on the number of operations. This allowed an unauthenticated attacker to send a single HTTP request many operations (bypassing the per query complexity limit) to exhaust resources. This vulnerability is fixed in 3.23.0a3, 3.22.47, 3.21.54, and 3.20.118.

Published: 2026-04-08 Last update: 2026-04-20 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-33756 is rated Low Risk (38.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.08%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2026-33756

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 2026-04-09 — 0.08% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-33756

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]

Weakness enumeration for CVE-2026-33756

Affected software / configurations for CVE-2026-33756

Vendor Product Version Raw CPE
saleor saleor >= 2.0.0, < 3.20.118 cpe:2.3:a:saleor:saleor:*:*:*:*:*:*:*:*
saleor saleor >= 3.21.0, < 3.21.54 cpe:2.3:a:saleor:saleor:*:*:*:*:*:*:*:*
saleor saleor >= 3.22.0, < 3.22.47 cpe:2.3:a:saleor:saleor:*:*:*:*:*:*:*:*
saleor saleor 3.23.0 cpe:2.3:a:saleor:saleor:3.23.0:alpha0:*:*:*:*:*:*
saleor saleor 3.23.0 cpe:2.3:a:saleor:saleor:3.23.0:alpha1:*:*:*:*:*:*
saleor saleor 3.23.0 cpe:2.3:a:saleor:saleor:3.23.0:alpha2:*:*:*:*:*:*

References for CVE-2026-33756

cvelogic Threat Intelligence