CVE-2021-30163
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedRedmine before 4.0.8 and 4.1.x before 4.1.2 allows attackers to discover the names of private projects if issue-journal details exist that have changes to project_id values.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceRedmine before 4.0.8 and 4.1.2 stores project_id changes in issue journals when issues are moved between projects. Attackers with access to such issues can read these journal entries to discover the names of private projects, even if they would not normally have permission to view those private projects.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 9.0< 4.0.8>= 4.1.0, < 4.1.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed Redmine versionRun 'bundle exec rake about' in the Redmine application directory, or access /admin/info from the web interface to display the version numberAffected if Version is less than 4.0.8 or greater than or equal to 4.1.0 but less than 4.1.2
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Identify issues moved between projectsQuery the journals table in the database for entries where the 'journalized_type' is 'Issue' and there are details showing a 'project_id' change. For example: SELECT * FROM journals j JOIN journal_details jd ON j.id = jd.journal_id WHERE jd.property = 'attr' AND jd.name = 'project_id';Affected if Any journal entries exist that record project_id changes from moving issues between projects
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Verify unauthorized project visibilityLog in as a user who has access to an issue that was moved TO a private project but does NOT have permission to view that private project. Navigate to that issue and open the history/journal section.Affected if The user can see journal entries that disclose the name or ID of a private project they should not have access to
You are affected if your Redmine version is below 4.0.8 (or between 4.1.0 and 4.1.1) AND issues have been moved between projects, allowing users to discover private project names through visible journal entries.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor data4.0.84.1.2
Upgrade to Redmine 4.0.8, 4.1.2, or later to receive the patch that restricts visibility of project_id changes in issue journals.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-30163 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-30163 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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