Credential disclosure via cross-host redirect authentication
Published Oct 19, 2026 · Updated Oct 19, 2026
Credential disclosure in Apache Camel HTTP allows remote attackers to steal configured credentials via cross-host redirects. OAuth2ClientConfigurer reattaches bearer tokens on redirect hops, while an unrestricted AuthScope permits basic and digest authentication at another host. Exploitation requires followRedirects=true, configured credentials, and control over an endpoint response; the disclosed impact is credential theft, not direct data modification or service interruption.
Summary
What happened
Credential disclosure in Apache Camel HTTP allows remote attackers to steal configured credentials via cross-host redirects. OAuth2ClientConfigurer reattaches bearer tokens on redirect hops, while an unrestricted AuthScope permits basic and digest authentication at another host. Exploitation requires followRedirects=true, configured credentials, and control over an endpoint response; the disclosed impact is credential theft, not direct data modification or service interruption.
The record
- CVE
- CVE-2026-85251
- Published
- Oct 19, 2026
- Updated
- Oct 19, 2026
- Vendor
- Apache Software Foundation
- Product
- Apache Camel
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 19, 2026CVE publishedPublication date reported by the CVE source.
- Oct 19, 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?
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- Affected versionversion=4.0.0 <4.18.5
- Affected versionversion=4.19.0 <4.22.1
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.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
- Upstream HTTP redirect credential-disclosure regression testsproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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