CVE-2026-4982
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 · uneditedA user with permission "update world" in any Venueless world is able to exfiltrate chat messages from direct messages or channels in other worlds on the same server due to a bug in the reporting feature. The exploitability is limited by the fact that the attacker needs to know the internal channel UUID of the chat channel, which is unlikely to be obtained by an outside attacker, especially for direct messages.
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 confidenceA broken access control vulnerability in Venueless allows users with 'update world' permission in any world to exfiltrate chat messages from direct messages or channels in other worlds on the same server, due to insufficient validation in the reporting feature that fails to restrict cross-world message access.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- Low
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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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Identify Venueless installationLocate Venueless application files or check running services (look for venueless process, check for venueless config files, or identify the web application serving venueless content)Affected if Venueless software is present on the system
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Determine Venueless versionCheck the installed Venueless version (look in package.json, setup.py, or running service version endpoint) and compare to any known fixed versions if availableAffected if Running an unpatched version of Venueless where the vulnerability exists
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Verify update world permission existsCheck user role assignments in the Venueless admin interface or database to identify users granted the 'update world' permission in any worldAffected if Any user account has 'update world' permission assigned in at least one world
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Confirm reporting feature is accessibleVerify the reporting/export feature is enabled and accessible to users with update world permissions (check feature flags, permissions configuration, or API endpoints)Affected if The reporting feature is enabled and available to users with update world permission
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Test cross-world message accessUsing a user with update world permission in World A, attempt to access or export messages from World B through the reporting feature (check API calls or UI for cross-world message retrieval)Affected if Messages from other worlds can be accessed through the reporting feature without explicit world access rights
A user is affected if they run Venueless, any user has 'update world' permission, and the reporting feature can access messages from worlds where that user does not have explicit access rights.
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 dataImplement proper permission boundaries in the reporting feature to ensure users can only access messages from worlds where they have explicit access rights, and add validation that prevents cross-world message exfiltration.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-4982 — 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-2026-4982 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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