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CVE-2026-48205 Apache Camel

Affected softwareApache Camel
Severity9.1 Critical CVSS 3.1
Fixed in4.14.8, 4.18.3, 4.21.0
WeaknessServer-side request forgery (CWE-918)
Published6 Jul 2026
Updated25 Oct 2026

Description

Improper Input Validation, Server-Side Request Forgery (SSRF) vulnerability in Apache Camel DNS component. The camel-dns producers read DNS operation parameters - the resolver to query, the name or domain to look up, the record type and class, and the search term - from Exchange message headers whose constant values (DnsConstants.DNS_SERVER, DNS_NAME, DNS_DOMAIN, DNS_TYPE, DNS_CLASS, TERM) were the plain strings dns.server, dns.name, dns.domain, dns.type, dns.class and term. Because these names do not start with the Camel / camel prefix, HttpHeaderFilterStrategy - which blocks only the Camel header namespace on the HTTP boundary - let them pass from an inbound HTTP request straight into the Exchange. In a route that bridges an HTTP consumer (for example platform-http) into a dns: producer, any HTTP client could therefore set the dns.server header to make the dig producer build a SimpleResolver pointing at an attacker-controlled DNS server - a server-side request forgery via DNS, through which the attacker observes the queried name and can return poisoned responses - and set the dns.name / dns.domain headers to resolve arbitrary internal hostnames, disclosing whether they exist (internal network reconnaissance). No credentials are required when the bridging consumer is unauthenticated. This issue affects Apache Camel: from 4.0.0 before 4.14.8, from 4.15.0 before 4.18.3, from 4.19.0 before 4.21.0. Users are recommended to upgrade to version 4.21.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.8. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.3. After upgrading, routes that drive DNS operations via the raw header names must use CamelDnsServer / CamelDnsName / CamelDnsDomain / CamelDnsType / CamelDnsClass / CamelDnsTerm instead of the dns.* / term names. For deployments that cannot upgrade immediately, strip the dns.* and term headers from any untrusted ingress before the dns: producer, and set the DNS server and lookup parameters from a trusted source in the route.

CWE-20 · Improper input validation

Exploitation status

No public exploit

No exploit has been reported in the sources we check. The 1 repository below are public GitHub repositories with fewer than 5 stars.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC 1 indexed, none at 5+ stars
  • EPSS 0.60% chance in 30 days

1 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

IndexArtifactStarsFirst seen
GitHub PoC Reproducer for CVE-2026-48205: Apache Camel camel-dns dns.* header injection redirecting DNS queries to an attacker-controlled resolver (SSRF via DNS) and enabling internal-hostname reconnaissance (fixed in 4.14.8/4.18.3/4.21.0) 1 2026-07-17

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: apache/camel bdd40cf.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.camel:camel-dns 4.0.0 4.14.8 unbounded
org.apache.camel:camel-dns 4.15.0 4.18.3 unbounded
org.apache.camel:camel-dns 4.19.0 4.21.0 unbounded

Products and versions

2 products, 6 version entries
SourceVendorProductSchemeAffected versions
nvd apache camel generic ≥ 4.0.0 and < 4.14.8 · ≥ 4.15.0 and < 4.18.3 · ≥ 4.19.0 and < 4.21.0
osv org.apache.camel camel-dns generic ≥ 4.0.0 and < 4.14.8 · ≥ 4.15.0 and < 4.18.3 · ≥ 4.19.0 and < 4.21.0

References

URLTags
https://github.com/apache/camel/commit/bdd40cf23f2b22cd293ddad319069a7b3b3c6c70 WEB
https://camel.apache.org/security/CVE-2026-48205.html WEB
https://github.com/apache/camel PACKAGE
https://issues.apache.org/jira/browse/CAMEL-23574 WEB
http://www.openwall.com/lists/oss-security/2026/07/05/19 WEB

Timeline

Published2026-07-06By the CVE Program.
NVD record modified2026-10-25NVD's own last-modified date for this record.