How severe is CVE-2020-27986?

CVE-2020-27986 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-27986 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27986?

CVE-2020-27986 affects Sonarsource Sonarqube. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27986?

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-2020-27986 published?

CVE-2020-27986 was published on 2020-10-28 and last updated on 2026-06-17.

CVE-2020-27986

CVE-2020-27986 is a high-severity vulnerability in Sonarsource Sonarqube with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 16% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Sonarsource Sonarqube
Published: 2020-10-28
Last modified: 2026-06-17

Description

SonarQube 8.4.2.36762 allows remote attackers to discover cleartext SMTP, SVN, and GitLab credentials via the api/settings/values URI. NOTE: reportedly, the vendor's position for SMTP and SVN is "it is the administrator's responsibility to configure it.

Frequently asked questions

What is CVE-2020-27986?: SonarQube 8.4.2.36762 allows remote attackers to discover cleartext SMTP, SVN, and GitLab credentials via the api/settings/values URI. NOTE: reportedly, the vendor's position for SMTP and SVN is "it is the administrator's responsibility to configure it.
How severe is CVE-2020-27986?: CVE-2020-27986 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-27986 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27986?: CVE-2020-27986 affects Sonarsource Sonarqube. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27986?: 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-2020-27986 published?: CVE-2020-27986 was published on 2020-10-28 and last updated on 2026-06-17.

References

https://csl.com.co/sonarqube-auditando-al-auditor-parte-i/

Affected products (1)

cpe:2.3:a:sonarsource:sonarqube:8.4.2.36762:*:*:*:*:*:*:*

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