CVE-2026-85432: Authentication Bypass by Spoofing in themoos core-moos
Description
MOOS core-moos through 10.4.0 fails to validate client identity in MOOSDB message processing, allowing authenticated attackers to attribute writes to other clients by supplying arbitrary source identifiers in serialized messages. Attackers can forge message origins and cancel third-party subscriptions by exploiting the disconnect between authenticated connection identity and wire-supplied source attribution.
CVSS v4.0
Score 8.8high
Affected software
themoos
core-moos
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-85432 describes an authentication bypass vulnerability in the MOOS core-moos component through version 10.4.0. The vulnerability arises because the software fails to validate client identity in MOOSDB message processing, permitting authenticated attackers to forge the source identifiers in serialized messages. This disconnect between the authenticated connection identity and the wire-supplied source attribution allows attackers to impersonate other clients and interfere with their subscriptions.
Potential Impact
An attacker with authentication can spoof message origins, causing writes to be attributed to other clients and potentially canceling third-party subscriptions. This undermines the integrity of client identity attribution within MOOSDB message processing, potentially disrupting normal operations and client interactions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-03T19:50:54.838Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a99fa4aacd9273b4994b22a
Added to database: 09/03/2026, 22:52:58 UTC
Last enriched: 09/07/2026, 11:58:17 UTC
Last updated: 10/17/2026, 06:48:21 UTC
Views: 48
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