CVE-2022-42964
Exponential ReDoS in pymatgen leads to denial of service
CVE-2022-42964 is a medium vulnerability (CVSS 5.9) in Materialsproject Pymatgen, published November 9, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.96%, the 61st percentile. Fixed in pymatgen 2022.11.7+dfsg1-11+deb12u2.
- Severity
- 5.9 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.96%EPSS, 61st percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
2022.11.7+dfsg1-11+deb12u2pymatgen +5 more
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pymatgenPyPI | through 2022.9.21 | None known |
pymatgenDebian:12 | before 2022.11.7+dfsg1-11+deb12u2, plus listed versions 2022.11.7+dfsg1-112022.11.7+dfsg1-11+deb12u1 | 2022.11.7+dfsg1-11+deb12u2 |
pymatgenDebian:13 | before 2023.06.23+dfsg1-1 | 2023.06.23+dfsg1-1 |
pymatgenPyPI | through 2022.9.21, plus listed versions 1.0.41.0.51.1.01.1.11.1.2 Show 45 moreShow less1.2.01.2.11.2.21.2.31.2.41.2.81.2.91.5.01.6.01.7.01.7.21.8.01.8.21.8.31.9.02.0.02.1.02.1.22.10.02.10.12.10.22.10.32.10.42.10.52.10.62.2.02.2.12.2.22.2.32.2.42.2.62.3.02.3.12.3.22.4.02.4.12.4.22.4.32.5.02.5.12.5.22.5.32.5.42.5.52.6.1 | None known |
pymatgenPyPI | before 2025.10.7, plus listed versions 1.0.41.0.51.1.01.1.11.1.2 Show 45 moreShow less1.2.01.2.11.2.21.2.31.2.41.2.81.2.91.5.01.6.01.7.01.7.21.8.01.8.21.8.31.9.02.0.02.1.02.1.22.10.02.10.12.10.22.10.32.10.42.10.52.10.62.2.02.2.12.2.22.2.32.2.42.2.62.3.02.3.12.3.22.4.02.4.12.4.22.4.32.5.02.5.12.5.22.5.32.5.42.5.52.6.1 | 2025.10.7 |
pymatgenUbuntu:22.04:LTS | All versions, plus listed versions 2022.0.14+dfsg1-12022.0.16+dfsg1-12022.0.17+dfsg1-12022.0.17+dfsg1-1build1 | None known |
What each source reports
CVE List Score used
Exponential ReDoS in pymatgen leads to denial of service
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
- Record
CVE-2022-42964- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1333
- Updated
- 2026-11-02
EUVDEUVD-2022-7243
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
- Record
EUVD-2022-7243- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5jqp-885w-xj32
pymatgen is vulnerable to Regular Expression Denial of Service (ReDoS)
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.
- Record
GHSA-5jqp-885w-xj32- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1333
- Updated
- 2026-11-02
NVD
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
- Record
CVE-2022-42964- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1333
- Updated
- 2026-11-02
OSV
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
- Record
CVE-2022-42964- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2022-42964
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
- Record
DEBIAN-CVE-2022-42964- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
OSVGHSA-5jqp-885w-xj32
pymatgen is vulnerable to Regular Expression Denial of Service (ReDoS)
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.
- Record
GHSA-5jqp-885w-xj32- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1333
- Updated
- 2026-11-02
OSVPYSEC-2026-909
pymatgen is vulnerable to Regular Expression Denial of Service (ReDoS)
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.
- Record
PYSEC-2026-909- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2022-42964
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
- Record
UBUNTU-CVE-2022-42964- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
Left out here: 649 versions. The JSON record has them.