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CVE-2026-40858 Apache camel

Affected softwareApache camel
Severity8.8 High CVSS 3.1 2 scores
Fixed in4.14.7, 4.18.2, 4.20.0
WeaknessDeserialization of untrusted data (CWE-502)
Published27 Apr 2026
Updated26 Oct 2026

Description

The camel-infinispan component's ProtoStream-based remote aggregation repository deserializes data read from a remote Infinispan cache using java.io.ObjectInputStream without applying any ObjectInputFilter. An attacker who can write to the Infinispan cache used by a Camel application can inject a crafted serialized Java object that, when read during normal aggregation repository operations such as get or recover, results in arbitrary code execution in the context of the application. This issue affects Apache Camel: from 4.0.0 before 4.14.7, 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 4.14.7. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2. The JIRA ticket: https://issues.apache.org/jira/browse/CAMEL-23322 refers to the various commits that resolved the issue, and have more details. This issue follows the same class of vulnerability previously addressed in CVE-2024-22369, CVE-2024-23114 and CVE-2026-25747.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. The 1 repository below are public GitHub repositories with fewer than 5 stars.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC 1 indexed, none at 5+ stars
  • EPSS 1.3% chance in 30 days

1 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

IndexArtifactStarsFirst seen
GitHub PoC Reproducer for CVE-2026-40858 — Apache Camel camel-infinispan remote aggregation repository unsafe deserialization (RCE) 1 2026-07-10

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

Decided by A vulnerability class already blocked by an ARMR security rule
Finding Protected by Waratek's ARMR deserialization security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-502: Deserialization of Untrusted Data.
Candidate fix https://bugzilla.redhat.com/show_bug.cgi?id=2463179 : a Red Hat bug: the triage, which links onward to the fix

How to mitigate CVE-2026-40858

Upgrade Apache camel to a release that fixes it: 4.14.7, 4.18.2 or 4.20.0. Until you can, Waratek RASP blocks exploitation with its deserialization and process rules. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

CVSS

8.8 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CISA-ADP Secondary published
CVSS 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H redhat-SADP Secondary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.camel:camel-infinispan 4.0.0 4.14.7 unbounded
org.apache.camel:camel-infinispan 4.15.0 4.18.2 unbounded
org.apache.camel:camel-infinispan 4.19.0 4.20.0 unbounded

Products and versions

2 products, 6 version entries
SourceVendorProductSchemeAffected versions
nvd apache camel generic ≥ 4.0.0 and < 4.14.7 · ≥ 4.15.0 and < 4.18.2 · 4.19.0
osv org.apache.camel camel-infinispan generic ≥ 4.0.0 and < 4.14.7 · ≥ 4.15.0 and < 4.18.2 · ≥ 4.19.0 and < 4.20.0

References

URLTags
https://bugzilla.redhat.com/show_bug.cgi?id=2463179 bugzilla
https://github.com/apache/camel/pull/22152 WEB
https://github.com/apache/camel/pull/22151 WEB
https://github.com/apache/camel/pull/22150 WEB
https://github.com/apache/camel/pull/22149 WEB
https://github.com/apache/camel/pull/22148 WEB
https://github.com/apache/camel/pull/22147 WEB
https://github.com/apache/camel/pull/22146 WEB
https://github.com/apache/camel/commit/e074c01a719cccf3b1c2efbd2ff31e60fd6220ce WEB
https://github.com/apache/camel/commit/5c20de8f047de725e0b32a874cdb5108c3e46558 WEB

Timeline

Published2026-04-27By the CVE Program.
NVD record modified2026-10-26NVD's own last-modified date for this record.