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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-70452

CVE-2026-70452: 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.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityHigh7.4

    High [CVE-2026-70452] rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure

    CVE-2026-70452Source published Source updated

    rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability that allows remote attackers to circumvent hosts deny rules by inducing DNS resolution failures during hostname-based access control evaluation. When a DNS lookup for a hostname-based deny rule fails, the daemon skips the rule rather than defaulting to a deny decision, enabling attackers who can trigger DNS failures to bypass module-level IP access controls and gain unauthorized access to restricted module file trees. A flaw was found in rsync. 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-636. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat OpenShift Container…

    Affected products in this advisory
    • Red Hat Enterprise Linux 10
    • Red Hat Enterprise Linux 9
    • Red Hat Enterprise Linux 7
    • Red Hat Enterprise Linux 8

    2 more entries in the full advisory.

    Source-reported affected versions
    • < 3.1.0
    • < 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
    • To mitigate this issue, configure rsync to use IP-based access controls instead of hostname-based rules in `rsyncd.conf`. Alternatively, restrict network access to the rsync daemon using firewall rules to allow connections only from trusted IP addresses or networks. This limits exposure by preventing untrusted remote attackers from reaching the service and attempting to induce DNS resolution failures. If changes are made to `rsyncd.conf`, the rsync daemon may need to be restarted or reloaded for the changes to take effect.
    Full advisory and evidenceOpen source bulletin

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