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CVE-2026-6857

Severity7.5 High CVSS 3.1 2 scores
Fixed in4.20.0
WeaknessDeserialization of untrusted data (CWE-502)
Published22 Apr 2026
Updated26 Oct 2026

Description

A flaw was found in camel-infinispan. This vulnerability involves unsafe deserialization in the ProtoStream remote aggregation repository. A remote attacker with low privileges could exploit this by sending specially crafted data, leading to arbitrary code execution. This allows the attacker to gain full control over the affected system, impacting its confidentiality, integrity, and availability.

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 0.67% 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 CVE-2026-6857 2026-05-16

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=2460003 : a Red Hat bug: the triage, which links onward to the fix

How to mitigate CVE-2026-6857

Upgrade the affected software to 4.20.0 or later. 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

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:H/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 7.5 HIGH CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H secalert@redhat.com Secondary published
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:H/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 0 4.20.0 unbounded

Products and versions

1 product, 1 version entry
SourceVendorProductSchemeAffected versions
osv org.apache.camel camel-infinispan generic < 4.20.0

References

URLTags
https://bugzilla.redhat.com/show_bug.cgi?id=2460003 bugzilla
https://github.com/apache/camel/commit/ec297f89065b6cfc2682487a96411692d6c296e2 WEB
https://access.redhat.com/errata/RHSA-2026:17668 WEB
https://access.redhat.com/errata/RHSA-2026:22453 WEB
https://access.redhat.com/security/cve/CVE-2026-6857 WEB
https://github.com/apache/camel PACKAGE
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6857.json

Timeline

Published2026-04-22By the CVE Program.
NVD record modified2026-10-26NVD's own last-modified date for this record.