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VulnerabilityPublished Updated

CVE-2026-40473: Apache Camel Mina · Deserialization of Untrusted Data

Affects Apache Camel MinaSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High · fixed in 4.20.0 : patch Apache Camel Mina soon.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.1% chance of exploitation in 30 days – higher than 67% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.20.0, 4.18.2, 4.14.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade Apache Camel Mina and org.apache.camel/camel-mina and Apache Software Foundation/org.apache.camel:camel-mina to 4.20.0, 4.18.2 or 4.14.6.

Affected software

ProductAffectedFixed in
Apache Software FoundationApache Camel MinaAffected
  • >=4.19.0 <4.20.0
Fixed in
  • 4.20.0
Apache Software FoundationApache Camel MinaAffected
  • >=4.15.0 <4.18.2
Fixed in
  • 4.18.2
Apache Software FoundationApache Camel MinaAffected
  • >=3.0.0 <4.14.6
Fixed in
  • 4.14.6
Mavenorg.apache.camel/camel-minapkg:maven/org.apache.camel/camel-minaOther threatsAffected
  • <4.14.6
  • >=4.15.0
  • <4.18.2
  • >=4.19.0
  • <4.20.0
Fixed in
  • 4.14.6
  • 4.18.2
  • 4.20.0
MavenApache Software Foundation/org.apache.camel:camel-minapkg:maven/Apache Software Foundation/org.apache.camel:camel-minaOther threatsAffected
  • >=3.0.0 <4.14.6
  • >=4.15.0 <4.18.2
  • >=4.19.0 <4.20.0
Fixed in
  • 4.14.6
  • 4.18.2
  • 4.20.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available. Users should upgrade to Apache Camel version 4.20.0, or if using the 4.14.x LTS stream, upgrade to 4.14.6, or if on the 4.18.x stream, upgrade to 4.18.2. No other mitigation or temporary workaround is indicated in the vendor advisory. Patch status is confirmed by the vendor advisory.

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.

References

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