Vulnerability Intelligence Report
Alfresco Activiti Process Variable Serialization System SerializableType.java createObjectInputStream deserialization
CVE-2026-3967
A flaw has been found in Alfresco Activiti up to 7.19/8.8.0. Affected by this issue is the function deserialize/createObjectInputStream of the file activiti-core/activiti-engine/src/main/java/org/activiti/engine/impl/variable/SerializableType.java of the component Process Variable Serialization System. This manipulation causes deserialization. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
No Active Exploit Signals
CVSS Base Score
5.3
MEDIUM
EPSS Probability:0.24%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Alfresco | Activiti | 7.0 (affected), 7.1 (affected), 7.2 (affected), 7.3 (affected), 7.4 (affected), 7.5 (affected), 7.6 (affected), 7.7 (affected), 7.8 (affected), 7.9 (affected), 7.10 (affected), 7.11 (affected), 7.12 (affected), 7.13 (affected), 7.14 (affected), 7.15 (affected), 7.16 (affected), 7.17 (affected), 7.18 (affected), 7.19 (affected), 8.0 (affected), 8.1 (affected), 8.2 (affected), 8.3 (affected), 8.4 (affected), 8.5 (affected), 8.6 (affected), 8.7 (affected), 8.8.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.242%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulDB · Researcher · Switzerland |
| Reserved | 2026-03-11T13:36:15 |
| Published | 2026-03-12T00:02:10 |
| Last Updated | 2026-03-12T13:26:26 |
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