PT-2022-26683 · Pypi+1 · Pymatgen+1

Denys Vozniuk · CVE-2022-42964 · Published 2022-11-09 · Updated 2026-07-07

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions pymatgen (affected versions not specified)

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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

CVE-2022-42964

GHSA-5JQP-885W-XJ32

PYSEC-2026-909

Affected Products

Debian

Pymatgen

References · 17

• 🔥 https://research.jfrog.com/vulnerabilities/pymatgen-redos-xray-257184 · Exploit
• https://osv.dev/vulnerability/PYSEC-2026-909 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-42964 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-42964 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-42964 · Security Note
• https://osv.dev/vulnerability/GHSA-5jqp-885w-xj32 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-42964 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-42964 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-42964 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-42964 · Vendor Advisory
• https://github.com/materialsproject/pymatgen/pull/4476 · Note
• https://github.com/materialsproject/pymatgen/commit/8d2ca2296109f9e5a4ac1c751eee650ab4303108 · Note
• https://github.com/materialsproject/pymatgen · Note
• https://github.com/materialsproject/pymatgen/issues/2755 · Note
• https://t.me/cvenotify/109846 · Telegram Post