CVE-2021-21376

OMERO.web is open source Django-based software for managing microscopy imaging. OMERO.web before version 5.9.0 loads various information about the current user such as their id, name and the groups they are in, and these are available on the main webclient pages. This represents an information exposure vulnerability. Some additional information being loaded is not used by the webclient and is being removed in this release. This is fixed in version 5.9.0.

• CWE-200

• https://github.com/ome/omero-web/blob/master/CHANGELOG.md#590-march-2021Release Notes, Third Party Advisory
• https://github.com/ome/omero-web/commit/952f8e5d28532fbb14fb665982211329d137908cPatch, Third Party Advisory
• https://github.com/ome/omero-web/security/advisories/GHSA-gfp2-w5jm-955qThird Party Advisory
• https://pypi.org/project/omero-web/Release Notes, Third Party Advisory
• https://www.openmicroscopy.org/security/advisories/2021-SV1/Vendor Advisory
• https://github.com/ome/omero-web/blob/master/CHANGELOG.md#590-march-2021Release Notes, Third Party Advisory
• https://github.com/ome/omero-web/commit/952f8e5d28532fbb14fb665982211329d137908cPatch, Third Party Advisory
• https://github.com/ome/omero-web/security/advisories/GHSA-gfp2-w5jm-955qThird Party Advisory
• https://pypi.org/project/omero-web/Release Notes, Third Party Advisory
• https://www.openmicroscopy.org/security/advisories/2021-SV1/Vendor Advisory

Published

Mar 23, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-21370TYPO3 is an open source PHP based web content management sys…5.4
• CVE-2021-21371Tenable for Jira Cloud is an open source project designed to…8.6
• CVE-2021-21372Nimble is a package manager for the Nim programming language…8.8
• CVE-2021-21373Nimble is a package manager for the Nim programming language…5.9
• CVE-2021-21374Nimble is a package manager for the Nim programming language…8.1
• CVE-2021-21375PJSIP is a free and open source multimedia communication lib…6.5
• CVE-2021-21377OMERO.web is open source Django-based software for managing …5.4
• CVE-2021-21378Envoy is a cloud-native high-performance edge/middle/service…8.2
• CVE-2021-21379XWiki Platform is a generic wiki platform offering runtime s…5.4
• CVE-2021-2138Vulnerability in the Oracle Cloud Infrastructure Data Scienc…4.6
• CVE-2021-21380XWiki Platform is a generic wiki platform offering runtime s…8.8
• CVE-2021-21381Flatpak is a system for building, distributing, and running …8.2