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🐍
🐍 PyPI
Not in CISA KEV
HIGH severity

CVE-2023-37920 — certifi

HIGHFix: certifi/python-certifi@8fb96ed

CVE-2023-37920 is a high-severity (CVSS 7.5) CWE-345 vulnerability in certifi. A fix is available for certifi — see the affected versions and patch details below.

Certifi's removal of e-Tugra root certificate

Also known asGHSA-xqr8-7jwr-rhp7PYSEC-2023-135
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-37920.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs48th percentile — riskier than 48% of all scored CVEsHighest risk
0.00%0.36%0.71%1.07%0.1%0.6%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍certifi

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Certifi is a curated collection of Root Certificates for validating the trustworthiness of SSL certificates while verifying the identity of TLS hosts. Certifi prior to version 2023.07.22 recognizes "e-Tugra" root certificates. e-Tugra's root certificates were subject to an investigation prompted by reporting of security issues in their systems. Certifi 2023.07.22 removes root certificates from "e-Tugra" from the root store.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIcertifi≥ 2015.4.28&&< 2023.7.222023.7.22pip install --upgrade 'certifi==2023.7.22'

Affected Products

8 products · 9 configurations
Application
certificertifi
≥ 2015.4.28 && < 2023.7.22
range
OS
fedorafedoraproject
1 version
38
Application
active iq unified managernetapp
all
Application
management services for element softwarenetapp
all
Application
management services for netapp hcinetapp
all
Application
ontap mediatornetapp
all

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for certifi, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update certifi to 2023.7.22 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-37920 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatLow

While eTurgra certificates being marked as untrusted by Mozilla is significant from a trust and security standpoint, this is still considered a low severity issue. The certificates were removed from Mozilla's root store in July 2023, indicating a proactive response to security concerns. Additionally, Red Hat does not…

ProductFixed inAdvisory
Red Hat Enterprise Linux 8fence-agents-0:4.2.1-121.el8_9.2RHSA-2024:0133
Red Hat Enterprise Linux 8ca-certificates-0:2024.2.69_v8.0.303-80.0.el8_10RHBA-2024:5736
Red Hat Enterprise Linux 8.1 Update Services for SAP Solutionsfence-agents-0:4.2.1-30.el8_1.10RHSA-2023:6812
Red Hat Enterprise Linux 8.2 Advanced Update Supportfence-agents-0:4.2.1-41.el8_2.12RHSA-2023:7435
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportfence-agents-0:4.2.1-65.el8_4.13RHSA-2023:7523
Red Hat Enterprise Linux 8.6 Extended Update Supportfence-agents-0:4.2.1-89.el8_6.10RHSA-2023:7407
Red Hat Enterprise Linux 8.8 Extended Update Supportfence-agents-0:4.2.1-112.el8_8.2RHSA-2023:7528
Red Hat Enterprise Linux 9fence-agents-0:4.10.0-55.el9_3.2RHSA-2023:7753

Frequently Asked Questions

Certifi is a curated collection of Root Certificates for validating the trustworthiness of SSL certificates while verifying the identity of TLS hosts. Certifi prior to version 2023.07.22 recognizes "e-Tugra" root certificates. e-Tugra's root certificates were subject to an investigation prompted by reporting of security issues in their systems. Certifi 2023.07.22 removes root certificates from "e-Tugra" from the root store.
O3 Security · Impact-Aware SCA

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CVE-2023-37920: certifi — Fixed in 2023.7.22