Apache Camel incoming header filter bypass via HTTP parameters
Apache Camel contains a bypass/injection vulnerability in its default incoming header filter. In affected versions, attacker-controlled data supplied to Camel over HTTP can be translated into Camel-specific message headers, and the default filter does not adequately prevent those internal headers from being set. Apache states the issue is exploitable not only through malicious HTTP headers, but also through HTTP request parameters and request payload content that are mapped into headers. This can let an attacker inject Camel-specific headers that alter the behavior of downstream Camel components used by a route, including components such as camel-bean or camel-exec. The issue affects Apache Camel 4.10.0 before 4.10.2, 4.8.0 before 4.8.5, and 3.10.0 before 3.22.4. Apache notes this issue is related to CVE-2025-27636 and shares the same root cause and fix, but CVE-2025-29891 expands the exploitability to HTTP parameters.
Are you exposed to this one?
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A previously addressed Apache Camel incoming-header filter vulnerability referenced as related to the same header injection pattern.
A remote code execution vulnerability in Apache Camel related to case-sensitive header filtering weaknesses that can let attackers manipulate internal Camel headers via crafted HTTP requests in vulnerable component configurations.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.