| Title | SPLWare esProc <=V20260507 Deserialization RCE |
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| Description | The esProc unit/node server deserializes objects straight from a raw TCP socket using ObjectInputStream.readUnshared() with no ObjectInputFilter or any other class restriction. The server listens on TCP port 8281 by default. A network attacker who can reach the port sends a crafted serialized object that, combined with a gadget present on the classpath, yields remote code execution. No authentication or handshake is required before the read. |
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| Source | ⚠️ https://github.com/SPLWare/esProc/issues/67 |
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| User | Ana10gy (UID 93358) |
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| Submission | 07/02/2026 11:47 (2 months ago) |
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| Moderation | 08/18/2026 20:32 (2 months later) |
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| Status | Accepted |
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| VulDB entry | 391906 [SPLWare esProc up to 20260507 SocketData.java ObjectInputStream.readUnshared deserialization] |
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| Points | 20 |
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