How severe is CVE-2021-26541?

CVE-2021-26541 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-2021-26541 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26541?

CVE-2021-26541 affects Gitlog Project Gitlog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26541?

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-2021-26541 published?

CVE-2021-26541 was published on 2021-02-08 and last updated on 2026-06-17.

CVE-2021-26541

CVE-2021-26541 is a critical-severity vulnerability in Gitlog Project Gitlog 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Gitlog Project Gitlog
Published: 2021-02-08
Last modified: 2026-06-17

Description

The gitlog function in src/index.ts in gitlog before 4.0.4 has a command injection vulnerability.

Frequently asked questions

What is CVE-2021-26541?: The gitlog function in src/index.ts in gitlog before 4.0.4 has a command injection vulnerability.
How severe is CVE-2021-26541?: CVE-2021-26541 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-2021-26541 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26541?: CVE-2021-26541 affects Gitlog Project Gitlog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26541?: 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-2021-26541 published?: CVE-2021-26541 was published on 2021-02-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gitlog_project:gitlog:*:*:*:*:*:node.js:*:*

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