# CVE-2022-42964: pymatgen: An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the pymatgen PyPI package, when an at...

CVE-2022-42964 is fixed in pymatgen on 1 platform, first by DEBIAN-CVE-2022-42964, released November 9, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-42964
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0096
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 9, 2022

## Description

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the pymatgen PyPI package, when an attacker is able to supply arbitrary input to the GaussianInput.from_string method

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | pymatgen Debian 12.15 (bookworm) | 2022.11.7+dfsg1-11+deb12u2 | [DEBIAN-CVE-2022-42964](https://patchblox.com/security/data/fix/linux/debian-cve-2022-42964.md) | Nov 9, 2022 |
| Linux | pymatgen Debian 13.5 (trixie) | 2023.06.23+dfsg1-1 | [DEBIAN-CVE-2022-42964](https://patchblox.com/security/data/fix/linux/debian-cve-2022-42964.md) | Nov 9, 2022 |

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Data as of 2026-11-08T00:53:09Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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