CVE-2026-40453
criticalpriority · track · 11EPSS 0.021 · 82 %ileexploit · PoCDEEUNLUSEPSS · scored 2026-10-27
The fix for CVE-2025-27636 added setLowerCase(true) to HttpHeaderFilterStrategy so that case-variant header names such as 'CAmelExecCommandExecutable' are filtered out alongside 'CamelExecCommandExecutable'. The same setLowerCase(true) call was not applied to five non-HTTP HeaderFilterStrategy implementations: JmsHeaderFilterStrategy and ClassicJmsHeaderFilterStrategy in camel-jms, SjmsHeaderFilterStrategy in camel-sjms, CoAPHeaderFilterStrategy in camel-coap, and GooglePubsubHeaderFilterStrategy in camel-google-pubsub. Because those strategies use case-sensitive String.startsWith('Camel'/'camel') filtering while the Camel Exchange stores headers in a case-insensitive map, an attacker with JMS (or equivalent) producer access to the broker consumed by a Camel route can inject case-variant Camel internal headers, which are then resolved by downstream components such as camel-exec and camel-file using their canonical casing. This enables remote code execution and arbitrary file write on routes that forward JMS messages to header-driven components. 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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
affected products (45)
Products and version ranges known to be affected.
advisories (5)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0129Kwetsbaarheden verholpen in Apache CamelNL2026-04-29csaf · ncsc_nlNL
Apache Software Foundation heeft kwetsbaarheden verholpen in Apache Camel.
- NCSC-2026-0230Kwetsbaarheden verholpen in SAP-productenNL2026-07-14csaf · ncsc_nlNL
SAP heeft kwetsbaarheden verholpen in SAP NetWeaver Application Server ABAP, SAP Approuter, SAP Commerce Cloud, SAP NetWeaver Application Server Java, SAProuter, SAP Change and Transport System Attach Tool, SAP NetWeaver Enterprise Portal, SAP S/4HANA modules, SAP Fiori Launchpad, SAP CRM WebClient UI, SAP HANA Database user self service tools, en SAP Commerce Cloud. Update: Door een verwerkingsfout waren geen referenties meegegeven. Dit is hersteld. Er zijn verder geen inhoudelijke wijzigingen
- WID-SEC-W-2026-1271Apache Camel: Mehrere SchwachstellenDeutsch2026-04-26csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apache Camel ausnutzen, um beliebigen Programmcode auszuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
- WID-SEC-W-2026-2308SAP Patch Day Juli 2026Deutsch2026-07-13csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in SAP Software ausnutzen, um Dateien zu manipulieren, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um einen SQL-Injection Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und um beliebigen Programmcode auszuführen.
- GHSA-jg2m-9x48-3gvjApache Camel has an incomplete fix for CVE-2025-276362026-04-27ghsa · osvUS
The fix for CVE-2025-27636 added setLowerCase(true) to HttpHeaderFilterStrategy so that case-variant header names such as 'CAmelExecCommandExecutable' are filtered out alongside 'CamelExecCommandExecutable'. The same setLowerCase(true) call was not applied to five non-HTTP HeaderFilterStrategy implementations: JmsHeaderFilterStrategy and ClassicJmsHeaderFilterStrategy in camel-jms, SjmsHeaderFilterStrategy in camel-sjms, CoAPHeaderFilterStrategy in camel-coap, and GooglePubsubHeaderFilterStrategy in camel-google-pubsub. Because those strategies use case-sensitive String.startsWith('Camel'/'camel') filtering while the Camel Exchange stores headers in a case-insensitive map, an attacker with JMS (or equivalent) producer access to the broker consumed by a Camel route can inject case-variant Camel internal headers, which are then resolved by downstream components such as camel-exec and camel-file using their canonical casing. This enables remote code execution and arbitrary file write on routes that forward JMS messages to header-driven components. 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.
also known as (3)
Other names and identifiers for this entity.
sources
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references (9)
External citations — patches, advisories, analysis.
- https://camel.apache.org/download/Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-40453cnnvd
- https://camel.apache.org/security/CVE-2026-40453.htmlenisa_euvd
- https://access.redhat.com/errata/RHSA-2026:17668nvd
- https://access.redhat.com/errata/RHSA-2026:19835nvd
- https://access.redhat.com/security/cve/CVE-2026-40453nvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2463173nvd
- https://camel.apache.org/security/CVE-2026-40453.htmlVendor Advisorynvd
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