CVE-2026-53791
CVE-2026-53791: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.4
High [CVE-2026-53791] rsync < 3.5.0 Daemon IP Spoofing via PROXY Protocol Header
CVE-2026-53791Source published Source updated
rsync daemon before 3.5.0 contains an IP address spoofing vulnerability that allows unauthenticated remote attackers to bypass IP-based access controls by sending a crafted PROXY protocol header with a forged source address. Attackers who can connect directly to the rsync daemon can inject a spoofed source IP in the PROXY protocol header to circumvent hosts allow/deny rules, gaining unauthorized access that would otherwise be blocked based on their real source address. This allows unauthorized access to restricted resources. Note: Red Hat Enterprise Linux 8 and earlier versions do not contain the vulnerable PROXY protocol implementation and are not affected. Red Hat severity: Important — CVSS 7.4 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N). Weakness: CWE-290. Affected Red Hat…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat package: rsync
- Source-reported affected versions
- < 3.5.0
- Source-reported fixed versions
- 3.5.0
- rsync-0:3.5.0-3.el10_2
- rsync-0:3.2.7-1.el9_8
- RHSA-2026:67463
1 more entries in the full advisory.
- Mitigation guidance
- Restrict rsync daemon TCP/873 to the trusted proxy only (CME-202). If PROXY protocol is unused, leave proxy protocol disabled (the default).
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