# CVE-2023-37365: hnswlib: Hnswlib 0.7.0 has a double free in init_index when the M argument is a large integer.

CVE-2023-37365 is fixed in hnswlib on 1 platform, first by DEBIAN-CVE-2023-37365, released June 30, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-37365
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0059
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 30, 2023

## Description

Hnswlib 0.7.0 has a double free in init_index when the M argument is a large integer.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | hnswlib Debian 12.15 (bookworm) | 0.6.2-2+deb12u1 | [DEBIAN-CVE-2023-37365](https://patchblox.com/security/data/fix/linux/debian-cve-2023-37365.md) | Jun 30, 2023 |
| Linux | hnswlib Debian 13.5 (trixie) | 0.7.0-1 | [DEBIAN-CVE-2023-37365](https://patchblox.com/security/data/fix/linux/debian-cve-2023-37365.md) | Jun 30, 2023 |
| Linux | hnswlib Debian 14 | 0.7.0-1 | [DEBIAN-CVE-2023-37365](https://patchblox.com/security/data/fix/linux/debian-cve-2023-37365.md) | Jun 30, 2023 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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