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01 Record

CVE-2026-78162

Apache Camel: Camel-Hazelcast Managed Instances Missing Java Deserialization Filter (Incomplete Fix for CVE-2026-43865)

CriticalPUBLISHEDCNA: apache
CNA base score10.0 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

02 Description

Apache Camel: Camel-Hazelcast Managed Instances Missing Java Deserialization Filter (Incomplete Fix for CVE-2026-43865)

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.91% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 59.9% of scored records. A rank, not a probability.
NVD base score
10.0 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-20.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-19 10:03Z10 DAYS AGO
Last updated
2026-10-20 03:55Z9 DAYS AGO
Reserved
2026-08-23
Assigning CNA
apache
Record state
PUBLISHED
Severity
Critical (CVSS 10.0)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Weaknesses
  • CWE-502Deserialization of Untrusted DataBase
Data version
5.2
Document digest
357df12bcc4bfe0f15e4becb77482a76136278dbe7bcab0b84dfc9c9524fe404

05 Affected products

VendorProductVersionsPlatforms
Apache Software FoundationApache Camel4.0.0 to < 4.18.5, 4.19.0 to < 4.22.1—

06 References

07 Remediation

Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.22.x releases stream should upgrade to 4.22.1. Users on the 4.18.x releases stream should upgrade to 4.18.5. The 4.14.x releases stream and earlier reached end of life before this issue was resolved and will not receive a fix, so deployments on those lines must move to a supported release. The fix adds an applyDefault(ClientConfig) overload to HazelcastSerializationFilterHelper and calls the helper on both previously uncovered paths, so every Hazelcast configuration that Camel builds itself now carries the default filter, which whitelists the class name prefixes java., javax. and org.apache.camel. and blacklists java.net. A user-supplied Config, ClientConfig or HazelcastInstance is still left untouched.