{"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-2026-79778 exists.","fix":"Upgrade github.com/rclone/rclone to 1.75.0 or later.","what":"CVE-2026-79778 is a medium-severity vulnerability in rclone, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-79778 and fix it if it is affected.\n\nWhat it is: CVE-2026-79778 is a medium-severity vulnerability in rclone, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-79778 exists.\n\nAffected packages and fixed versions:\n- github.com/rclone/rclone (Go): affected all versions; fixed in 1.75.0\n- github.com/rclone/rclone (Go): affected all versions; fixed in 1.75.0\n- github.com/rclone/rclone (Go): affected all versions; fixed in 1.75.0\n- rclone (Bitnami): affected all versions; fixed in 1.75.0\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-2026-79778/ (Markdown: https://insights.sbomify.com/CVE-2026-79778/index.md)","id":"CVE-2026-79778","markdown":"https://insights.sbomify.com/CVE-2026-79778/index.md","name":"CVE-2026-79778","record":{"aliases":["BIT-rclone-2026-79778","DEBIAN-CVE-2026-79778","GHSA-3x6r-wxxg-53vv","GHSA-hqc5-cqqv-7gwf","GO-2026-6183","MINI-6cjx-25g4-645q","MINI-7569-2vwm-hgxr","MINI-7pjv-qfq8-6394","MINI-hq58-w4m2-53x5","MINI-hq88-88vv-wcgm","MINI-p57m-pvh5-9crq","MINI-qr7r-mvfr-959w","MINI-v4wp-w3x3-ppwx","UBUNTU-CVE-2026-79778"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"rclone file sync tool","requires_auth":"none","summary":"A malicious endpoint can trigger a panic in rclone's WebDAV TUS handler, causing a denial of service by terminating unrecovered goroutines.","user_interaction":"required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-248","name":"Uncaught Exception"}],"description":"rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV TUS creation handler that dereferences a nil response before checking for transport errors. A malicious or compromised configured endpoint can reset connections during TUS uploads to trigger a panic that terminates unrecovered goroutines and halts unrelated work in long-lived processes.","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 before v1.75.0 Denial of Service via TUS nil-response panic","id":"CVE-2026-79778","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":4,"n_references":2,"next":{"headline":"rclone before v1.75.0 WebDAV Credential Exposure via HTTPS-to-HTTP Redirect","id":"CVE-2026-79779"},"packages":[{"ecosystem":"Bitnami","fixed":["1.75.0"],"introduced":["0"],"last_affected":[],"package":"rclone","purl":"pkg:bitnami/rclone","source":"BIT-rclone-2026-79778"},{"ecosystem":"Go","fixed":["1.75.0"],"introduced":["0"],"last_affected":[],"package":"github.com/rclone/rclone","purl":null,"source":"GHSA-3x6r-wxxg-53vv"},{"ecosystem":"Go","fixed":["1.75.0"],"introduced":["0"],"last_affected":[],"package":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","source":"GHSA-3x6r-wxxg-53vv"},{"ecosystem":"Go","fixed":["1.75.0"],"introduced":["0"],"last_affected":[],"package":"github.com/rclone/rclone","purl":"pkg:golang/github.com/rclone/rclone","source":"GO-2026-6183"}],"prev":{"headline":"rclone before v1.75.0 Information Disclosure via RC API","id":"CVE-2026-79777"},"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-25","vendors":["rclone"]},"summary":"A malicious endpoint can trigger a panic in rclone's WebDAV TUS handler, causing a denial of service by terminating unrecovered goroutines.","url":"https://insights.sbomify.com/CVE-2026-79778/"}