GHSA-vpr3-2659-rw55 — high GitHub Advisory (CVE-2026-40473) in maven/org.apache.camel:camel-mina

Description

The camel-mina component's MinaConverter.toObjectInput(IoBuffer) type converter wraps an IoBuffer in a java.io.ObjectInputStream without applying any ObjectInputFilter or class-loading restrictions. When a Camel route uses camel-mina as a TCP or UDP consumer and requests conversion to ObjectInput (for example via getBody(ObjectInput.class) or @Body ObjectInput), an attacker sending a crafted serialized Java object over the network to the MINA consumer port can trigger arbitrary code execution in the context of the application during readObject().

This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0.

Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.

Basic information

Type: reviewed
Severity: high
Advisory on GitHub: Open advisory ↗
Repository advisory: —
Source code: Browse source ↗
Published (advisory): 2026-04-27 09:34:39 UTC
Updated: 2026-05-05 21:19:02 UTC
GitHub reviewed: 2026-05-05 21:19:01 UTC
NVD published: 2026-04-27

Score	Percentile
0.12%	30.96%

CVSS Scores

Base score	Version	Severity	Vector
8.8	3.1	—	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.

Identifiers

Type	Value
GHSA	GHSA-vpr3-2659-rw55 ↗
CVE	CVE-2026-40473 ↗

CWEs

CWE id	Name
CWE-502	Deserialization of Untrusted Data

Affected packages (3)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
maven	org.apache.camel:camel-mina	>= 3.0.0, < 4.14.6	4.14.6	—
maven	org.apache.camel:camel-mina	>= 4.15.0, < 4.18.2	4.18.2	—
maven	org.apache.camel:camel-mina	>= 4.19.0, < 4.20.0	4.20.0	—

Camel-MINA Vulnerable to Deserialization of Untrusted Data