Which products and versions are affected by CVE-2020-27986?

Affected: Sonarqube (Sonarsource) versions 8.4.2.36762. The full list is in the CVE brief.

Is CVE-2020-27986 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.

Is CVE-2020-27986 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2020-27986?

No public exploit code is known.

Is there a fix for CVE-2020-27986?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2020-27986 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2020-27986

HighExploited

SonarQube 8.4.2.36762 allows remote attackers to discover cleartext SMTP, SVN, and GitLab credentials via the api/settings/values URI.

Published Oct 28, 2020 · Updated Jul 8, 2026

Key Facts

Patch immediately

CVE-2020-27986 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Sonarqube (Sonarsource).
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023. No public exploit code is known.
EPSS estimates a 16% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS (30-day exploit likelihood)

16%

Higher than 96.8% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

None known

Get the full CVE-2020-27986 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

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.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Nov 13, 2023	n/a	Not reported
CIRCL KEV	Oct 14, 2023	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
SonarqubeSonarsource	8.4.2.36762	n/a

Timeline

Publicly disclosed
Oct 28, 2020
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Nov 13, 2023
Last updated
Jul 8, 2026

Weakness Type

CWE-306 Missing Authentication for Critical Function
CWE-312 Cleartext Storage of Sensitive Information

References

advisoryhttps://csl.com.co/sonarqube-auditando-al-auditor-parte-i/
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report

6 more references in the full CVE brief

FAQ

Common Questions.

SonarQube 8.4.2.36762 allows remote attackers to discover cleartext SMTP, SVN, and GitLab credentials via the api/settings/values URI.
Affected: Sonarqube (Sonarsource) versions 8.4.2.36762. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2020-27986 Running On Your Attack Surface?

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