What is the CVSS score of EUVD-2026-41840?

EUVD-2026-41840 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.2%.

Which versions of Apache Camel are affected by EUVD-2026-41840?

Apache Camel DNS component (versions 4.0.0-4.20.x) contains a critical server-side request forgery vulnerability that allows unauthenticated attackers to enumerate internal network hostnames through…. A patch is available.

How to fix or mitigate EUVD-2026-41840?

Within 24 hours: Conduct inventory scan to identify all systems running Apache Camel 4.0.0-4.14.7, 4.15.0-4.18.2, or 4.19.0-4.20.x. Within 7 days: Apply vendor-released patch per Apache Camel security advisory. Within 30 days: Implement network segmentation restricting outbound DNS resolution to authorized resolvers only; audit and disable dns: component producers on any routes exposed to HTTP clients.

Apache Camel EUVD-2026-41840

| CVE-2026-48205 CRITICAL

Improper Input Validation (CWE-20)

2026-07-05

GHSA-hcm8-x79p-wx2w

SSRF Microsoft Apache Camel

9.1

CVSS 3.1 · Vendor

Severity by source

Vendor (CNA) PRIMARY

9.1 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

vuln.today AI

6.5 CRITICAL

Remote unauthenticated when the vulnerable HTTP-to-DNS route is present, but impact is limited to internal-hostname existence disclosure (C:L) and DNS-answer tampering (I:L), with no availability impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (CNA).

CVSS VectorVendor

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Updated

Jul 06, 2026 - 21:17 vuln.today

v3 (cvss_changed)

Analysis Updated

Jul 06, 2026 - 21:17 vuln.today

v2 (cvss_changed)

Re-analysis Queued

Jul 06, 2026 - 20:22 vuln.today

cvss_changed

CVSS changed

Jul 06, 2026 - 20:22 NVD

9.1 (CRITICAL)

Patch available

Jul 06, 2026 - 10:01 EUVD

Analysis Generated

Jul 05, 2026 - 20:43 vuln.today

Description PRE-NVD

Disclosed via oss-security. NVD scoring and full description are pending.

Articles & Coverage 4

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AnalysisAI

Server-side request forgery in the Apache Camel camel-dns component lets any HTTP client control DNS lookups when a route bridges an HTTP consumer (e.g. platform-http) into a dns: producer. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Reach unauthenticated HTTP-to-DNS route

Delivery

Send request with crafted dns.server/dns.name headers

Exploit

Headers bypass HttpHeaderFilterStrategy into Exchange

Execution

camel-dns builds SimpleResolver to attacker DNS

Persist

Resolve internal hostnames and return poisoned answers

Impact

Internal reconnaissance and DNS-response tampering

Access

Reach unauthenticated HTTP-to-DNS route

Delivery

Send request with crafted dns.server/dns.name headers

Exploit

Headers bypass HttpHeaderFilterStrategy into Exchange

Execution

camel-dns builds SimpleResolver to attacker DNS

Persist

Resolve internal hostnames and return poisoned answers

Impact

Internal reconnaissance and DNS-response tampering

Vulnerability AssessmentAI

Exploitation	Exploitation requires a specific deployment: a Camel route that bridges an HTTP consumer (such as platform-http, camel-jetty, or camel-servlet) directly into a dns: producer using one of the dig/ip/lookup/wikipedia operations, where the HTTP consumer is unauthenticated. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The signals are mixed. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An organization runs a Camel route where a platform-http consumer feeds a dns: dig producer to offer a DNS-lookup web endpoint. An unauthenticated attacker sends an HTTP request setting the dns.server header to their own DNS server and dns.name to an internal hostname like backend.corp.local; Camel builds a SimpleResolver against the attacker's server, revealing the queried internal name and letting the attacker return a poisoned answer. …
Remediation	Vendor-released patch: 4.21.0 is the primary fix; users on the 4.14.x LTS stream should upgrade to 4.14.8 and users on the 4.18.x stream to 4.18.3. … Detailed patch versions, workarounds, and compensating controls in full report.