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{"bugzilla": {"description": "rsync: rsync: Information disclosure and denial of service via crafted files-from entry", "id": "2515409", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515409"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["rsync 3.2.5 before 3.5.0\u00a0contains a heap out-of-bounds write vulnerability that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of a heap allocation by supplying a crafted files-from entry. Attackers can trigger the vulnerability against a read-only rsync daemon module by providing a files-from entry containing both an interior and trailing backslash, causing the add_implied_include() function to under-count the trailing backslash when sizing the destination buffer.", "A flaw was found in rsync. Remote unauthenticated attackers can exploit a heap out-of-bounds write vulnerability by supplying a crafted files-from entry. This entry, containing both an interior and trailing backslash, causes the add_implied_include() function to under-count the trailing backslash when sizing the destination buffer. This can lead to information disclosure or denial of service."], "mitigation": {"lang": "en:us", "value": "Restrict access to the rsync daemon (TCP 873) to trusted hosts with firewall rules. If the daemon is unused, disable and stop rsyncd.service."}, "name": "CVE-2026-70461", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "rsync", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "rsync", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "rsync", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "rsync", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "rsync", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-13T14:42:49Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-70461\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-70461\nhttps://github.com/RsyncProject/rsync/releases/tag/v3.5.0\nhttps://github.com/RsyncProject/rsync/security/advisories/GHSA-jhxm-j4mq-3fj4\nhttps://www.vulncheck.com/advisories/rsync-heap-out-of-bounds-write-via-files-from-entry"], "statement": "This is an Important vulnerability in rsync that allows remote unauthenticated attackers to achieve information disclosure and denial of service. The flaw occurs in the rsync daemon when processing a specially crafted `files-from` entry, leading to a heap out-of-bounds write. This can be exploited against read-only rsync daemon modules, making it a significant risk for publicly exposed rsync services.", "threat_severity": "Important"}

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