Resource exhaustion in Saleor

CVE-2026-35401

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 include many GraphQL mutations or queries in a single API call using aliases or chaining multiple mutations, resulting in resource exhaustion. This vulnerability is fixed in 3.23.0a3, 3.22.47, 3.21.54, and 3.20.118.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (37.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-35401: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

  • Saleor — versions 3.23.0, >= 3.23.0-a.0, < 3.23.0a3, >= 3.21.0-a.0, < 3.21.54

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-35401?
CVE-2026-35401 is a high-severity vulnerability in Saleor, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-04-08.
How severe is CVE-2026-35401?
High severity. CVSS v3 base score is 7.5 out of 10.