Improper Handling of Case Sensitivity Affecting org.apache.camel:camel-sjms package, versions [3.0.0-M1,4.14.6)[4.15.0,4.18.2)[4.19.0,4.20.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Apr 2026
- disclosed27 Apr 2026
- creditSaroj Khadka
Introduced: 27 Apr 2026
CVE-2026-40453 (opens in a new tab)How to fix?
Upgrade org.apache.camel:camel-sjms to version 4.14.6, 4.18.2, 4.20.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity due to a flaw in the default filtering mechanism HeaderFilterStrategy that only blocks headers starting with specific prefixes. An attacker can execute arbitrary code and write files by injecting specially crafted case-variant headers when they have producer access to the broker consumed by a route.
Note:
This issue is due to incomplete fix for CVE-2025-27636.