How severe is CVE-2021-26275?

CVE-2021-26275 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-26275 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26275?

CVE-2021-26275 affects Eslint-fixer Project Eslint-fixer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26275?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-26275 published?

CVE-2021-26275 was published on 2021-03-19 and last updated on 2026-06-17.

CVE-2021-26275

CVE-2021-26275 is a critical-severity vulnerability in Eslint-fixer Project Eslint-fixer with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Eslint-fixer Project Eslint-fixer
Published: 2021-03-19
Last modified: 2026-06-17

Description

The eslint-fixer package through 0.1.5 for Node.js allows command injection via shell metacharacters to the fix function. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. The ozum/eslint-fixer GitHub repository has been intentionally deleted

Frequently asked questions

What is CVE-2021-26275?: The eslint-fixer package through 0.1.5 for Node.js allows command injection via shell metacharacters to the fix function. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. The ozum/eslint-fixer GitHub repository has been intentionally deleted
How severe is CVE-2021-26275?: CVE-2021-26275 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-26275 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26275?: CVE-2021-26275 affects Eslint-fixer Project Eslint-fixer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26275?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-26275 published?: CVE-2021-26275 was published on 2021-03-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:eslint-fixer_project:eslint-fixer:*:*:*:*:*:node.js:*:*

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