Unauthenticated SSRF via unfiltered DNS control headers
Published Jul 6, 2026 · Updated Jul 6, 2026
SSRF in Apache Camel DNS allows remote attackers to redirect server-side DNS queries through crafted inbound HTTP headers. Plain dns.server and dns.name Exchange headers pass HttpHeaderFilterStrategy and directly choose the SimpleResolver target and queried name. Exposure requires an HTTP-consumer route bridged to a dns: producer; affected branches enable attacker-visible queries, poisoned replies, and internal-hostname enumeration.
Summary
What happened
SSRF in Apache Camel DNS allows remote attackers to redirect server-side DNS queries through crafted inbound HTTP headers. Plain dns.server and dns.name Exchange headers pass HttpHeaderFilterStrategy and directly choose the SimpleResolver target and queried name. Exposure requires an HTTP-consumer route bridged to a dns: producer; affected branches enable attacker-visible queries, poisoned replies, and internal-hostname enumeration.
The record
- CVE
- CVE-2026-48205
- Published
- Jul 6, 2026
- Updated
- Jul 6, 2026
- Vendor
- The Apache Software Foundation
- Product
- Apache Camel DNS
- Classifications
- CWE-20, CWE-918, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 6, 2026CVE publishedPublication date reported by the CVE source.
- Jul 6, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.0.0 <4.14.8
- Affected versionversion=4.15.0 <4.18.3
- Affected versionversion=4.19.0 <4.21.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- oscerd CVE-2026-48205 reproducerproof of concept · demonstrated
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Technologies
Your stack
See the directory against your own environment.
Your stack
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