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.
CVE-2024-23346
This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 3.8%, top 11% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.3
- EG Score
- 9.3(medium)
- EG Risk
- 58(Track*)EG Risk 58/100SSVC: Track*
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity93% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS
- 88.9%
- KEV
- Not listed
Published
February 21, 2024
Last Modified
February 5, 2025
Advisory Details (3)
Auto-updated Jul 17, 2026Critical Security Flaw in Pymatgen Library (CVE-2024-23346) - vsociety
https://www.vicarius.io/vsociety/posts/critical-security-flaw-in-pymatgen-library-cve-2024-23346Arbitrary code execution when parsing a maliciously crafted JonesFaithfulTransformation transformation_string · Advisory · materialsproject/pymatgen · GitHub
https://github.com/materialsproject/pymatgen/security/advisories/GHSA-vgv8-5cpj-qj2fcommit c231cbd3d514 (materialsproject/pymatgen)
Patch available: materialsproject/pymatgen v2024.6.10 (contains commit c231cbd3d514)
https://github.com/materialsproject/pymatgen/commit/c231cbd3d5147ee920a37b6ee9dd236b376bcf5aAffected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pymatgen | 1.0.4 ... v1.0.2 (581 versions) | 2024.2.20 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Publicly available exploits
(4 references)Working exploit code is in the public domain (3 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCDAVIDAROCA27/CVE-2024-23346-exploitFirst seen Jul 24, 2025
This is a exploit for the known Remote Code Execution (RCE) vulnerability in the `pymatgen` (CVE-2024-23346) Python library by uploading a malicious `CIF` file to the hosted `CIF Analyzer` website on the target running on the Chemistry machine from Hack the Box.
Open source ↗ - Exploit-DBEDB-52205First seen Apr 15, 2025
Pymatgen 2024.1 - Remote Code Execution (RCE)
Open source ↗ - GitHub PoCSanity-Archive/CVE-2024-23346First seen Feb 20, 2025
PoC of the vulnerability CVE-2024-23346
Open source ↗ - GitHub PoC9carlo6/CVE-2024-23346First seen Nov 5, 2024
This repository contains a Crystallographic Information File (CIF) intended for use on the "Chemistry" machine on Hack The Box (HTB).
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-77
- CVE-2016-15057EG 9.9CRITICAL
- CVE-2014-5470EG 9.8EPSS 95%CRITICAL
- CVE-2013-2513EG 9.8CRITICAL
- CVE-2015-20108EG 9.8CRITICAL
- CVE-2015-10096NVD 5.0EG 9.8MEDIUM
- CVE-2017-20156NVD 5.5EG 9.8MEDIUM
- CVE-2016-20017EG 9.8 KEVEPSS 99%CRITICAL
- CVE-2016-4991EG 9.8CRITICAL
- CVE-2015-20107NVD 7.6EG 9.8EPSS 94%HIGH
- CVE-2014-4982EG 9.8EPSS 91%CRITICAL
Frequently asked(5)
What is CVE-2024-23346?
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Dependency Blast Radius
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