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Servers and applications

CVE-2021-39189

Observable Response Discrepancy in Lost Password Service

Severity
Medium 5.3
Published
15 Sept 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
10.1.3
Also known as
GHSA-579x-cjvr-cqj9
Sources
NVD, Project advisories (GitHub)

Description

Pimcore is an open source data & experience management platform. In versions prior to 10.1.3, it is possible to enumerate usernames via the forgot password functionality. This issue is fixed in version 10.1.3. As a workaround, one may apply the available patch manually.

Affected software

SoftwareAffected versions
PimcoreServers and applications · cpe:a:pimcore:pimcore
  • Every version before 10.1.3
PimcoreServers and applications · github:pimcore/pimcore
  • Every version before 10.1.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-39189
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-39189
  • GitHub Advisory Database https://github.com/advisories/GHSA-579x-cjvr-cqj9
  • github.com https://github.com/pimcore/pimcore/security/advisories/GHSA-579x-cjvr-cqj9