{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-53783 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-53783 is a high-severity vulnerability in RsyncProject rsync, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-53783 and fix it if it is affected.\n\nWhat it is: CVE-2026-53783 is a high-severity vulnerability in RsyncProject rsync, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-53783 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-2026-53783/ (Markdown: https://insights.sbomify.com/CVE-2026-53783/index.md)","id":"CVE-2026-53783","markdown":"https://insights.sbomify.com/CVE-2026-53783/index.md","name":"CVE-2026-53783","record":{"aliases":["ALPINE-CVE-2026-53783","AZL-95825","BELL-CVE-2026-53783","CLSA-2026-1791480690","CLSA-2026-1792576195","CLSA-2026-1792659934","DEBIAN-CVE-2026-53783","ECHO-2923-d825-c1f1","GHSA-9cgc-64g4-3gv5","ROOT-OS-DEBIAN-11-CVE-2026-53783","UBUNTU-CVE-2026-53783"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"rsync file transfer","requires_auth":"low_privilege","summary":"Authenticated attackers can exploit a race condition in rrsync to bypass directory restrictions and read or write files outside the permitted subtree.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-88","name":"Improper Neutralization of Argument Delimiters in a Command"},{"id":"CWE-59","name":"Improper Link Resolution Before File Access"}],"description":"rsync before 3.5.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability in the rrsync restricted shell wrapper that allows authenticated clients to escape enforced directory restrictions by substituting a symlink for a path component after validation but before transfer processing. Attackers can additionally leverage unrestricted flags such as --copy-unsafe-links, -D, and --log-file through rrsync to read or write files outside the permitted directory subtree.","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 TOCTOU Race Condition Directory Escape via rrsync","id":"CVE-2026-53783","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 Path Traversal via Symlink Module Root","id":"CVE-2026-53784"},"packages":[],"prev":{"headline":"Summarize \u003c 0.17.0 SSRF via podcast:transcript URL fetch","id":"CVE-2026-53782"},"products":["rsync"],"published":"2026-08-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"total"},"state":"PUBLISHED","updated":"2026-08-14","vendors":["RsyncProject"]},"summary":"Authenticated attackers can exploit a race condition in rrsync to bypass directory restrictions and read or write files outside the permitted subtree.","url":"https://insights.sbomify.com/CVE-2026-53783/"}