CVE catalog
CVE-2026-116188
rclone: CVE-2026-116188
- Severity
- Medium · CVSS 6.9
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 - Published
- Source
- [NVD] · [CVE record]
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | rclone | sid | 1.75.2-2 | fixed |
| Debian | rclone | trixie | 1.60.1+dfsg-4 | not affected |
| Debian | rclone | bookworm | 1.60.1+dfsg-2 | not affected |
| Ubuntu | rclone | 18.04 | 1.36-3 | vulnerable |
| Ubuntu | rclone | 18.04 | 1.36-3ubuntu0.1 | vulnerable |
| Ubuntu | rclone | 18.04 | 1.36-3ubuntu0.2 | vulnerable |
| Ubuntu | rclone | pro | 1.60.1+dfsg-4ubuntu2 | vulnerable |
| Ubuntu | rclone | pro | 1.60.1+dfsg-4ubuntu3 | vulnerable |
| Ubuntu | rclone | pro | 1.60.1+dfsg-4ubuntu3.1 | vulnerable |
| Ubuntu | rclone | pro | 1.60.1+dfsg-4ubuntu3.1+esm1 | vulnerable |
| Ubuntu | rclone | pro | 1.60.1+dfsg-4ubuntu3.2 | vulnerable |
| Ubuntu | rclone | pro | 1.60.1+dfsg-4ubuntu3.2+esm1 | vulnerable |
| Ubuntu | rclone | 26.10 | 1.60.1+dfsg-4ubuntu3 | vulnerable |
| Ubuntu | rclone | 26.10 | 1.69.3+dfsg-3 | vulnerable |
| Ubuntu | rclone | 26.10 | 1.69.3+dfsg-3ubuntu1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rclone | source | sid | 1.75.2-1 | not yet assigned | Not reported | Not reported |
| Debian | rclone | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | rclone | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-github-rclone-rclone-dev]Affected
Source package: [rclone]
Details (2)
1.60.1+dfsg-2· all · bookwormAffected
dsa · rclone · debian · bookworm; dsa · rclone · debian · 12
1.60.1+dfsg-2· all · bookwormAffected
dsa · rclone · debian · bookworm; dsa · rclone · debian · 12
- [rclone]Affected
Source package: [rclone]
Details (2)
1.60.1+dfsg-2+b5· amd64 · bookwormAffected
dsa · rclone · debian · bookworm; dsa · rclone · debian · 12
1.60.1+dfsg-2+b5· arm64 · bookwormAffected
dsa · rclone · debian · bookworm; dsa · rclone · debian · 12
[Debian 13 (Trixie)]
- [golang-github-rclone-rclone-dev]Affected
Source package: [rclone]
Details (2)
1.60.1+dfsg-4· all · trixieAffected
dsa · rclone · debian · 13
1.60.1+dfsg-4· all · trixieAffected
dsa · rclone · debian · 13
- [rclone]Affected
Details (2)
1.60.1+dfsg-4· amd64 · trixieAffected
dsa · rclone · debian · 13
1.60.1+dfsg-4· arm64 · trixieAffected
dsa · rclone · debian · 13
Observed:
References
- [https://github.com/rclone/rclone/security/advisories/GHSA-qjw8-8hmp-c3m6]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-116188]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-116188]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-116188]
- [https://security-tracker.debian.org/tracker/CVE-2026-116188]
- [https://www.vulncheck.com/advisories/rclone-serve-s3-1.75.0-before-1.75.2-memory-limit-bypass-via-multipart-overflow]
[Debian Security Tracker] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]