How severe is CVE-2026-33756?

CVE-2026-33756 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-33756 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33756?

CVE-2026-33756 primarily affects Saleor. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-33756?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33756 have an EU (EUVD) identifier?

Yes. CVE-2026-33756 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20527.

When was CVE-2026-33756 published?

CVE-2026-33756 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-33756

CVE-2026-33756 is a high-severity vulnerability in Saleor with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20527
Weakness: CWE-770
Affected product: Saleor
Published: 2026-04-08
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-33756?: 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.
How severe is CVE-2026-33756?: CVE-2026-33756 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-33756 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33756?: CVE-2026-33756 primarily affects Saleor. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-33756?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33756 have an EU (EUVD) identifier?: Yes. CVE-2026-33756 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20527.
When was CVE-2026-33756 published?: CVE-2026-33756 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:saleor:saleor:*:*:*:*:*:*:*:*
cpe:2.3:a:saleor:saleor:3.23.0:alpha0:*:*:*:*:*:*
cpe:2.3:a:saleor:saleor:3.23.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:saleor:saleor:3.23.0:alpha2:*:*:*:*:*:*

More vulnerabilities in Saleor

CVE-2026-35401 — High (CVSS 7.5): 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, a malicious actor can…
CVE-2026-24136 — High (CVSS 7.5): Saleor is an e-commerce platform. Versions 3.2.0 through 3.20.109, 3.21.0-a.0 through 3.21.44 and 3.22.0-a.0 through…
CVE-2026-35407 — Medium (CVSS 6.5): Saleor is an e-commerce platform. From 2.10.0 to before 3.23.0a3, 3.22.47, 3.21.54, and 3.20.118, a business-logic and…
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CVE-2022-0932 — Medium (CVSS 6.5): Missing Authorization in GitHub repository saleor/saleor prior to 3.1.2.
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