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AnswerApplication · Apache

CVE-2024-26578

MEDIUM · 5.9 CVSS v3.1 Published 2024-02-22
Fix available
A fix is available. Upgrade to after 1.2.1 or later.
See remediation →
68/100
Remediation priority · Elevated
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
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Answer.This issue affects Apache Answer: through 1.2.1. Repeated submission during registration resulted in the registration of the same user. When users register, if they rapidly submit multiple registrations using scripts, it can result in the creation of multiple user accounts simultaneously with the same name. Users are recommended to upgrade to version [1.2.5], which fixes the issue.

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 · moderate confidence

A race condition in the user registration process of Apache Answer allows rapid repeated submissions to create duplicate user accounts with the same username due to improper synchronization between concurrent registration requests.

MitigationUpgrade Apache Answer to version 1.2.5 or later to obtain the fix for the race condition in the registration flow.

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
AnswerApplication
Affected:<= 1.2.1

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
High
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/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. Locate the Apache Answer version
    Check the version file in the installation directory, or access the admin dashboard System > About page, or query the /api/v1/health endpoint if exposed
    Affected if The version displayed is 1.2.1 or earlier
  2. Confirm the exact version number
    Review the version string in the source code file (internal/version.go or VERSION file in the installation root) or the version displayed in the admin panel
    Affected if The version is <= 1.2.1 (for example 1.2.0, 1.2.1, or any version below 1.2.5)
  3. Inspect user accounts for duplicates
    Query the users table in the database for entries with identical usernames, or use the admin panel to view the user list and search for duplicate-looking usernames
    Affected if Multiple user accounts exist with the same username, indicating the race condition may have been exploited

You are affected if your Apache Answer installation is version 1.2.1 or lower, or if duplicate username accounts exist in your user database.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 1.2.1
Interim mitigation

Upgrade Apache Answer to version 1.2.5 or later to obtain the fix for the race condition in the registration flow.

Recommended fix High confidence

1.2.5

  1. 1. Back up the current Apache Answer installation including database and configuration files.
  2. 2. Stop the Apache Answer service to prevent active connections during upgrade.
  3. 3. Download Apache Answer version 1.2.5 from the official Apache Answer repository or release page.
  4. 4. Replace the existing Apache Answer application files with the new version 1.2.5 files.
  5. 5. Review and update any configuration files if required by the new version.
  6. 6. Run any database migrations or schema updates if included in the upgrade.
  7. 7. Start the Apache Answer service.
  8. 8. Verify the registration functionality works correctly and test that duplicate user registration is now prevented.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Answer Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

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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-2024-26578 in production — separate from our analysis above.

No notes yet

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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