{"affected":[{"defaultStatus":"unaffected","ecosystem":"golang","packageName":"github.com/rclone/rclone","product":"rclone","source":"CNA: VulnCheck","vendor":"rclone","versions":[{"lessThan":"1.75.2","status":"affected","version":"1.75.0","versionType":"semver"},{"status":"unaffected","version":"1.75.2","versionType":"semver"}]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*","versionEndExcluding":"1.75.2","versionStartIncluding":"1.75.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"cveId":"CVE-2026-116188","cwes":["CWE-190"],"description":"rclone serve s3 versions 1.75.0 before 1.75.2 contain an integer overflow vulnerability in multipart reorder-memory accounting that bypasses the configured buffer limit. Attackers can open two concurrent current-part PUT requests declaring huge lengths to wrap the signed int64 counter and retain out-of-order parts in memory, exhausting the host.","epss":{"date":"2026-11-04","percentile":0.16944,"score":0.00253},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/rclone/rclone/security/advisories/GHSA-qjw8-8hmp-c3m6"}],"kev":null,"metrics":[{"score":6.9,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},{"score":6.9,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":5.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1793812649483,"publishedAt":1792934424506,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/rclone/rclone/security/advisories/GHSA-qjw8-8hmp-c3m6"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/rclone-serve-s3-1.75.0-before-1.75.2-memory-limit-bypass-via-multipart-overflow"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/rclone/rclone/security/advisories/GHSA-qjw8-8hmp-c3m6"},{"source":"disclosure@vulncheck.com","tags":["Vendor Advisory"],"url":"https://github.com/rclone/rclone/security/advisories/GHSA-qjw8-8hmp-c3m6"},{"source":"disclosure@vulncheck.com","tags":["Third Party Advisory"],"url":"https://www.vulncheck.com/advisories/rclone-serve-s3-1.75.0-before-1.75.2-memory-limit-bypass-via-multipart-overflow"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Vendor Advisory"],"url":"https://github.com/rclone/rclone/security/advisories/GHSA-qjw8-8hmp-c3m6"}],"remediation":[],"revision":"04cb2ace39f84be51b647d631b2df06fe5ee450a4e2dddb02efd1fdbdbe2d4ae","sources":[{"modifiedAt":1793811630945,"name":"CNA: VulnCheck","retrievedAt":1793812148526,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116188"},{"modifiedAt":1793812649483,"name":"NVD","retrievedAt":1793816322132,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116188"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793812160286,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116188"}],"ssvc":{"assessedAt":1793811616558,"automatable":"yes","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"rclone serve s3 1.75.0 before 1.75.2 Memory Limit Bypass via Multipart Overflow","updatedAt":1793816322132}