High7.5Vendor: MediumRed Hat Linux Updated
Credential exposure and information disclosure via improper input validation of mail headers
CVE-2026-46584 Published Jul 6, 2026Updated by vendor Jul 6, 2026
Affected products & platforms
Red Hat LinuxUnclassified
Summary
Credential exposure and information disclosure via improper input validation of mail headers. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-918.
Affected versions
- < 4.19.0
- < 4.0.0
- < 4.14.8
- < 4.15.0
- < 4.18.3
- < 4.21.0
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
Fixed versions
- 4.21.0
- 4.14
- 4.14.8
- 4.18
- 4.18.3
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- To mitigate this vulnerability, ensure that any Camel routes processing untrusted input and forwarding it to the mail producer explicitly strip the `mail.smtp.*` and `mail.smtps.*` header namespaces. This can be achieved by adding `removeHeaders('mail.smtp.*')` and `removeHeaders('mail.smtps.*')` to the route definition between the untrusted ingress and the SMTP/SMTPS producer.
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
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