{ "document": { "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/centos-stream8els/vex/2026/cve-2026-53801-els_os-centos-stream8els.json" } ], "tracking": { "current_release_date": "2026-09-09T13:32:24Z", "generator": { "date": "2026-09-09T13:32:24Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-53801-ELS_OS-CENTOS-STREAM8ELS", "initial_release_date": "2026-08-13T15:19:00Z", "revision_history": [ { "date": "2026-08-13T15:19:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-09-01T13:20:54Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-09-01T17:12:02Z", "number": "3", "summary": "Update document" }, { "date": "2026-09-07T13:02:29Z", "number": "4", "summary": "Update document" }, { "date": "2026-09-09T13:32:24Z", "number": "5", "summary": "Update document" } ], "status": "final", "version": "5" }, "title": "Security update on CVE-2026-53801" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version", "name": "rsync-0:3.1.3-19.el8.1.x86_64", "product": { "name": "rsync-0:3.1.3-19.el8.1.x86_64", "product_id": "rsync-0:3.1.3-19.el8.1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/centos/rsync@3.1.3-19.el8.1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "rsync-daemon-0:3.1.3-19.el8.1.noarch", "product": { "name": "rsync-daemon-0:3.1.3-19.el8.1.noarch", "product_id": "rsync-daemon-0:3.1.3-19.el8.1.noarch", "product_identification_helper": { "purl": "pkg:rpm/centos/rsync-daemon@3.1.3-19.el8.1?arch=noarch" } } } ], 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"full_product_name": { "name": "rsync-0:3.1.3-19.el8.1.tuxcare.els10.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els10.x86_64" }, "product_reference": "rsync-0:3.1.3-19.el8.1.tuxcare.els10.x86_64", "relates_to_product_reference": "CentOS-Stream-8" }, { "category": "default_component_of", "full_product_name": { "name": "rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els10.noarch as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els10.noarch" }, "product_reference": "rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els10.noarch", "relates_to_product_reference": "CentOS-Stream-8" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-53801", "cwe": { "id": "CWE-59", "name": "Improper Link Resolution Before File Access ('Link Following')" }, "notes": [ { "category": "description", "text": "rsync before 3.5.0 contains a symlink race condition vulnerability in the sender's directory scanning logic that allows attackers to cause the sender to enumerate and transfer files outside the module root's intended subtree. Attackers who can create or manipulate symlinks in a path component of the scanned tree can replace a symlink with a directory entry pointing outside the module root between the lstat() call and the subsequent opendir() call, exposing files beyond the intended root in both daemon-mode and non-daemon sender-side scanning.", "title": "Vulnerability description" } ], "product_status": { "known_affected": [ "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els1.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els10.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els2.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els4.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els5.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els6.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els7.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els8.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els9.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.x86_64", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els1.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els10.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els2.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els4.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els5.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els6.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els7.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els8.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els9.noarch" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-53801" }, { "category": "external", "summary": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0", "url": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0" }, { "category": "external", "summary": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-mch3-qr4p-chgm", "url": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-mch3-qr4p-chgm" }, { "category": "external", "summary": "https://www.vulncheck.com/advisories/rsync-symlink-race-condition-directory-traversal", "url": "https://www.vulncheck.com/advisories/rsync-symlink-race-condition-directory-traversal" } ], "release_date": "2026-08-13T15:19:00Z", "remediations": [ { "category": "no_fix_planned", "date": "2026-09-01T14:11:38.125506Z", "details": "This flaw only affects the rsync sender’s directory scan and can lead to out-of-tree file disclosure; it has no integrity or availability impact and provides no code execution. Exploitation requires an attacker who already has write access within a parent directory of the sender’s source tree and who can win a narrow TOCTOU race between lstat() and opendir(), making it high‑complexity and not achievable via network access alone without those write permissions. In centrally managed VM/server deployments where exported source paths are not writable by untrusted users, this prerequisite is absent, so the practical risk is low and the issue can be deprioritized.", "product_ids": [ "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els1.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els10.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els2.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els4.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els5.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els6.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els7.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els8.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.tuxcare.els9.x86_64", "CentOS-Stream-8:rsync-0:3.1.3-19.el8.1.x86_64", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els1.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els10.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els2.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els4.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els5.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els6.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els7.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els8.noarch", "CentOS-Stream-8:rsync-daemon-0:3.1.3-19.el8.1.tuxcare.els9.noarch" ] } ] } ] }