{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-53799 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-53799 is a high-severity vulnerability in RsyncProject rsync, published on 13 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-53799 and fix it if it is affected.\n\nWhat it is: CVE-2026-53799 is a high-severity vulnerability in RsyncProject rsync, published on 13 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-53799 in the wild and no public exploit code.\n\nAffected product: RsyncProject rsync. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-53799/ (Markdown: https://insights.sbomify.com/CVE-2026-53799/index.md)","id":"CVE-2026-53799","markdown":"https://insights.sbomify.com/CVE-2026-53799/index.md","name":"CVE-2026-53799","record":{"aliases":["ALPINE-CVE-2026-53799","AZL-95849","BELL-CVE-2026-53799","CLSA-2026-1789554695","DEBIAN-CVE-2026-53799","ECHO-641e-898c-c057","GHSA-phxh-hjqv-39c9","UBUNTU-CVE-2026-53799"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"rsync file synchronization","requires_auth":"low_privilege","summary":"Local attackers can exploit a symlink race condition in rsync to apply arbitrary ACLs or extended attributes to unintended files, potentially leading to privilege escalation.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"rsync","vendor":"samba"}],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-59","name":"Improper Link Resolution Before File Access"},{"id":"CWE-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition"}],"description":"rsync before 3.5.0 contains a symlink race condition vulnerability that allows local attackers to cause rsync to apply arbitrary ACLs or extended attributes to unintended files by substituting a symlink at a predictable destination path between the file write and the subsequent acl_set_file() or lsetxattr() call. Attackers can exploit this timing window to redirect ACL and xattr application through a crafted symlink to files outside the intended destination tree, potentially granting elevated permissions and enabling local privilege escalation.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"rsync \u003c 3.5.0 Symlink Race Condition via ACL/xattr Application","id":"CVE-2026-53799","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"rsync \u003c 3.5.0 Symlink Race Condition via --remove-source-files","id":"CVE-2026-53800"},"packages":[],"prev":{"headline":"rsync \u003c 3.5.0 Privilege Confusion via name-converter uid/gid mapping","id":"CVE-2026-53798"},"products":["rsync"],"published":"2026-08-13","related":[{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2017-15994","kev_date_added":null,"published":"2017-10-29"},{"cvss_score":9.1,"headline":"rsync \u003c 3.5.0 Daemon IP Spoofing via PROXY Protocol Header","id":"CVE-2026-53791","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.8,"headline":"rsync 3.2.5 \u003c 3.5.0 Heap Out-of-Bounds Write via files-from Entry","id":"CVE-2026-70461","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.7,"headline":"rsync 3.4.2 \u003c 3.5.0 DoS via --zt Zstandard Compression Thread Exhaustion","id":"CVE-2026-70455","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.6,"headline":"rsync 3.1.0 \u003c 3.5.0 Authorization Bypass via auth users Directive Parsing","id":"CVE-2026-70463","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.5,"headline":"rsync \u003c 3.5.0 Symlink Following Arbitrary File Overwrite","id":"CVE-2026-53803","kev_date_added":null,"published":"2026-08-13"},{"cvss_score":8.4,"headline":"rsync \u003c 3.5.0 Path Traversal via Symlink Module Root","id":"CVE-2026-53784","kev_date_added":null,"published":"2026-08-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-14","vendors":["RsyncProject"]},"summary":"Local attackers can exploit a symlink race condition in rsync to apply arbitrary ACLs or extended attributes to unintended files, potentially leading to privilege escalation.","url":"https://insights.sbomify.com/CVE-2026-53799/"}