Authenticated email enumeration via distinct mutation errors
Published Apr 8, 2026 · Updated Apr 8, 2026
Information disclosure in affected Saleor releases allows remote authenticated users to enumerate registered email addresses. The requestEmailChange GraphQL mutation queried User records for the proposed new email and returned a distinct UNIQUE error when a match existed, instead of proceeding uniformly. Any authenticated account with its current password can submit the mutation over the network and identify storefront users for account reconnaissance and spear-phishing targeting.
Summary
What happened
Information disclosure in affected Saleor releases allows remote authenticated users to enumerate registered email addresses. The requestEmailChange GraphQL mutation queried User records for the proposed new email and returned a distinct UNIQUE error when a match existed, instead of proceeding uniformly. Any authenticated account with its current password can submit the mutation over the network and identify storefront users for account reconnaissance and spear-phishing targeting.
The record
- CVE
- CVE-2026-39851
- Published
- Apr 8, 2026
- Updated
- Apr 8, 2026
- Vendor
- Saleor
- Product
- Saleor
- Classifications
- CWE-204, T1589.002
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 8, 2026CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 2.10.0, < 3.20.118
- Affected versionversion=>= 3.21.0-a.0, < 3.21.54
- Affected versionversion=>= 3.22.0-a.0, < 3.22.47
- Affected versionversion=>= 3.23.0-a.0, < 3.23.0a3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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