Low [CVE-2026-88013] Information disclosure via HTTP backend forwarding headers on redirect
This low-severity Red Hat Linux advisory covers CVE-2026-88013 affecting Cryostat 4, Red Hat Advanced Cluster Management for Kubernetes 2.
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Summary
A flaw was found in rclone. The HTTP backend in rclone can forward custom or authentication headers, such as API keys, Authorization, or Cookie headers, when following redirects to a different host.
This can lead to the disclosure of sensitive information to untrusted destinations. Additionally, a redirect from HTTPS to HTTP on the same host can expose these headers in cleartext.
Red Hat severity: Low — CVSS 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-212.
Affected Red Hat products: Cryostat 4; Red Hat Advanced Cluster Management for Kubernetes 2. Red Hat does not currently list a fixing RHSA for this CVE.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 1.75.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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