Apache Camel-Hazelcast: Unsafe Java deserialization in default-configured managed Hazelcast instances enables remote code execution

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0098, the 62nd percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 14:19 UTC First seen by agentprime
2. 31 Oct 2026, 14:19 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-xww8-mxqw-m84w
• OSV: GHSA-xww8-mxqw-m84w
• nvd.nist.gov/vuln/detail/CVE-2026-43865
• github.com/apache/camel/pull/22943
• github.com/apache/camel/pull/22946
• github.com/apache/camel/pull/22955
• github.com/apache/camel/commit/5caf4368551f6d3b61690d5db03869491390d446
• github.com/apache/camel/commit/7a309042f22493082647a410d9d8cafd672b1c74
• github.com/apache/camel/commit/974a11b5ed5e2d50722f33aa48f61898395ea45b
• camel.apache.org/security/CVE-2026-43865.html
• github.com/apache/camel
• github.com/apache/camel/releases/tag/camel-4.14.8
• github.com/apache/camel/releases/tag/camel-4.18.3
• github.com/apache/camel/releases/tag/camel-4.21.0

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.