{"answers":{"affected":"4 open source packages ship an affected version, including github.com/rclone/rclone and rclone.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-79781 exists.","fix":"Upgrade github.com/rclone/rclone to 1.74.4 or later.","what":"CVE-2026-79781 is a medium-severity path traversal vulnerability in rclone, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-79781 and fix it if it is affected.\n\nWhat it is: CVE-2026-79781 is a medium-severity path traversal vulnerability in rclone, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-79781 exists.\n\nAffected packages and fixed versions:\n- github.com/rclone/rclone (Go): affected all versions; fixed in 1.74.4\n- github.com/rclone/rclone (Go): affected all versions; fixed in 1.74.4\n- github.com/rclone/rclone (Go): affected all versions; fixed in 1.74.4\n- rclone (Bitnami): affected all versions; fixed in 1.74.4\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-2026-79781/ (Markdown: https://insights.sbomify.com/CVE-2026-79781/index.md)","id":"CVE-2026-79781","markdown":"https://insights.sbomify.com/CVE-2026-79781/index.md","name":"CVE-2026-79781","record":{"aliases":["BIT-rclone-2026-79781","DEBIAN-CVE-2026-79781","GHSA-8v25-v8p6-qf7v","GHSA-98fh-ch8q-6529","GO-2026-6189","MINI-262f-j9xw-96jm","MINI-2q2g-433r-h3fq","MINI-7585-jrh3-p75v","MINI-8434-p585-g2q7","MINI-8f9x-c326-r5q9","MINI-x3g9-7vj7-9g6w","UBUNTU-CVE-2026-79781"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"rclone S3 server","requires_auth":"none","summary":"Attackers can read and overwrite root-level files by using dot-dot segments in S3 object keys when using rclone serve s3.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"rclone serve s3 before 1.74.4 contains a path traversal vulnerability that allows attackers to read and overwrite root-level files by using dot-dot segments in S3 object keys. Attackers can send requests with object keys like ../root-secret.txt to escape the bucket namespace and access files in the serve root directory.","ecosystems":["Bitnami","Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"rclone serve s3 Path Traversal via dot-dot object keys","id":"CVE-2026-79781","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"rclone before 1.74.4 Security Token Disclosure via HTTPS to HTTP Redirect","id":"CVE-2026-79782"},"packages":[{"ecosystem":"Bitnami","fixed":["1.74.4"],"introduced":["0"],"last_affected":[],"package":"rclone","purl":"pkg:bitnami/rclone","source":"BIT-rclone-2026-79781"},{"ecosystem":"Go","fixed":["1.74.4"],"introduced":["0"],"last_affected":[],"package":"github.com/rclone/rclone","purl":null,"source":"GHSA-8v25-v8p6-qf7v"},{"ecosystem":"Go","fixed":["1.74.4"],"introduced":["0"],"last_affected":[],"package":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","source":"GHSA-8v25-v8p6-qf7v"},{"ecosystem":"Go","fixed":["1.74.4"],"introduced":["0"],"last_affected":[],"package":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","source":"GO-2026-6189"}],"prev":{"headline":"rclone before v1.75.0 Credential Exposure via S3 Redirect","id":"CVE-2026-79780"},"products":["rclone"],"published":"2026-08-25","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-25","vendors":["rclone"]},"summary":"Attackers can read and overwrite root-level files by using dot-dot segments in S3 object keys when using rclone serve s3.","url":"https://insights.sbomify.com/CVE-2026-79781/"}