9.8

CVE-2026-47323: apache software foundation apache camel Improper Handling of Case Sensitivity

CVSS: 9.8v3.1CriticalModified
AliasesGHSA-8364-hfqj-pwm6
Published 19-05-2026Last modified 15-07-2026
Open JSON

Vulnerability summary

CVE-2026-47323 is a critical (CVSS 9.8) Improper Handling of Case Sensitivity vulnerability in apache software foundation apache camel. EPSS estimates a 1.60% chance of exploitation in the next 30 days, higher than 75.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.60%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-05-2026
    PublishedVulnerability first disclosed.
  2. 15-07-2026
    Last modifiedVulnerability information updated.

Description

Camel-CXF and Camel-Knative Message Header Injection via Missing Inbound Filtering The CXF and Knative HeaderFilterStrategy implementations (CxfRsHeaderFilterStrategy in camel-cxf-rest, CxfHeaderFilterStrategy in camel-cxf-transport, and KnativeHttpHeaderFilterStrategy in camel-knative-http) only filter outbound Camel-internal headers via setOutFilterStartsWith, while not configuring inbound filtering via setInFilterStartsWith. As a result, an unauthenticated attacker can inject Camel-internal headers (e.g. CamelExecCommandExecutable, CamelFileName) via HTTP requests to CXF-RS or CXF-SOAP endpoints. When a route forwards messages from these endpoints to header-driven components such as camel-exec or camel-file, the injected headers override configured values, enabling remote code execution or arbitrary file writes. This is the same pattern that was previously addressed in camel-undertow (CVE-2025-30177), the broader incoming-header filter (CVE-2025-27636 and CVE-2025-29891), and non-HTTP strategies (CVE-2026-40453). This issue affects Apache Camel: from 3.18.0 before 4.14.6, from 4.15.0 before 4.18.2. Users are recommended to upgrade to version 4.19.0, which fixes the issue. If users are on the 4.18.x LTS releases stream, then they are suggested to upgrade to 4.18.2. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.60%

Chance of exploitation in the next 30 days

Percentile

76%

Versus all other CVEs

30-day change

+0.06 pp

From 1.54% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.60%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • camel≥ 3.18.0, < 4.14.6 | ≥ 4.15.0, < 4.18.2
Apache software foundation1 product
Org.apache.camel1 product
  • camel-cxf-rest≥ 3.18.0, < 4.14.6 | ≥ 4.15.0, < 4.18.2

3 vendors · 3 products

References

6 links