How severe is CVE-2020-26226?

CVE-2020-26226 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2020-26226 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26226?

CVE-2020-26226 affects Semantic-release Project Semantic-release. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26226?

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

When was CVE-2020-26226 published?

CVE-2020-26226 was published on 2020-11-18 and last updated on 2026-06-17.

CVE-2020-26226

CVE-2020-26226 is a high-severity vulnerability in Semantic-release Project Semantic-release with a CVSS 3.x base score of 8.1. 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-116.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.8
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-116
Affected product: Semantic-release Project Semantic-release
Published: 2020-11-18
Last modified: 2026-06-17

Description

In the npm package semantic-release before version 17.2.3, secrets that would normally be masked by `semantic-release` can be accidentally disclosed if they contain characters that become encoded when included in a URL. Secrets that do not contain characters that become encoded when included in a URL are already masked properly. The issue is fixed in version 17.2.3.

Frequently asked questions

What is CVE-2020-26226?: In the npm package semantic-release before version 17.2.3, secrets that would normally be masked by `semantic-release` can be accidentally disclosed if they contain characters that become encoded when included in a URL. Secrets that do not contain characters that become encoded when included in a URL are already masked properly. The issue is fixed in version 17.2.3.
How severe is CVE-2020-26226?: CVE-2020-26226 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2020-26226 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26226?: CVE-2020-26226 affects Semantic-release Project Semantic-release. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26226?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-26226 published?: CVE-2020-26226 was published on 2020-11-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:semantic-release_project:semantic-release:*:*:*:*:*:*:*:*

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