CVE-2024-23346: Pymatgen (Python Materials Genomics) is an open-source Python library for materials analysis

Q: How do I fix CVE-2024-23346?

pymatgen: upgrade to 2024.2.20. Exact commands for each OS are on this page.

Q: Is CVE-2024-23346 being exploited?

CVE-2024-23346 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-23346 affect?

CVE-2024-23346 affects pymatgen. Severity is critical (CVSS 9.3). Pymatgen (Python Materials Genomics) is an open-source Python library for materials analysis. A critical security vulnerability exists in the `JonesFaithfulTransformation.from_transformation_str()` method within the `pymatgen` library prior

Q: How urgent is CVE-2024-23346?

Priority 60/100. Critical severity; EPSS top 10%: very likely to be exploited; Public exploit reference

This week

CRITICAL 9.3UPGRADE

CVE-2024-23346 is a critical-severity flaw (CVSS 9.3) affecting pymatgen. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Pymatgen (Python Materials Genomics) is an open-source Python library for materials analysis. A critical security vulnerability exists in the `JonesFaithfulTransformation.from_transformation_str()` method within the `pymatgen` library prior to version 2024.2.20. This method insecurely utilizes `eval()` for processing input, enabling execution of arbitrary code when parsing untrusted input. Version 2024.2.20 fixes this issue.

Why this priority

Critical severity
EPSS top 10%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.3 (Critical)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.8% (top 10%)
CISA exploited list	No
Weakness	CWE-77
Published	2024-02-21
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: materialsvirtuallab

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-02-21 17:15 UTCPublished CVE record published
2026-06-17 07:12 UTCUpdated Record last modified

materialsvirtuallab pymatgen UPGRADE

Affected: < 2024.2.20

Fixed in: 2024.2.20

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pymatgen || rpm -q pymatgen || pymatgen --version

2. UPGRADE to 2024.2.20 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pymatgen

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pymatgen

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Pymatgen 2024.1 - Remote Code Execution (RCE)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-23346?

pymatgen: upgrade to 2024.2.20. Exact commands for each OS are on this page.

Is CVE-2024-23346 being exploited?

CVE-2024-23346 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-23346 affect?

CVE-2024-23346 affects pymatgen. Severity is critical (CVSS 9.3). Pymatgen (Python Materials Genomics) is an open-source Python library for materials analysis. A critical security vulnerability exists in the `JonesFaithfulTransformation.from_transformation_str()` method within the `pymatgen` library prior

How urgent is CVE-2024-23346?

Priority 60/100. Critical severity; EPSS top 10%: very likely to be exploited; Public exploit reference

Software pages

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References

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