Debian LinuxOperating system · Debian

CVE-2021-30163

HIGH · 7.5 CVSS v3.1 Published 2021-04-06
Fix available
A fix is available. Upgrade to 4.0.8 / 4.1.2 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
Redmine 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 confidence

Redmine 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.

MitigationUpgrade to Redmine 4.0.8, 4.1.2, or later to receive the patch that restricts visibility of project_id changes in issue journals.

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
Debian LinuxOperating system
Affected:= 9.0
RedmineApplication
Affected:< 4.0.8>= 4.1.0, < 4.1.2

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Check installed Redmine version
    Run 'bundle exec rake about' in the Redmine application directory, or access /admin/info from the web interface to display the version number
    Affected if Version is less than 4.0.8 or greater than or equal to 4.1.0 but less than 4.1.2
  2. Identify issues moved between projects
    Query 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
  3. Verify unauthorized project visibility
    Log 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.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to 4.0.8 / 4.1.2 or later
Fixed in 4.0.84.1.2
Interim mitigation

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.

Fix this in Debian Linux Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,380
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,808.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-30163 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data