CVE catalog
CVE-2026-79783
rclone before 1.74.4 fails to mask special permission bits when applying source-supplied mode metadata in the local backend, allowing attackers to set setuid/setgid bits on attacker-controlled files.
- Severity
- Low · CVSS 3.6
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.23% · Oct 25, 2026
rclone before 1.74.4 fails to mask special permission bits when applying source-supplied mode metadata in the local backend, allowing attackers to set setuid/setgid bits on attacker-controlled files. When copying with metadata preservation from an untrusted remote, attackers can plant a setuid binary that escalates privileges to root if rclone runs as root, or to the service account user otherwise.
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 | vulnerable |
| Debian | rclone | bookworm | 1.60.1+dfsg-2 | 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 | [1145670] |
| Debian | rclone | source | trixie | (unfixed) | not yet assigned | Not reported | [1145670] |
| Debian | rclone | source | bookworm | (unfixed) | not yet assigned | Not reported | [1145670] |
Notes
[trixie] rclone: Minor issue [bookworm] rclone: Limited support, minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-github-rclone-rclone-dev]Affected
Source package: [rclone]
Details (2)
1.60.1+dfsg-2· all · bookwormAffected
nvd · rclone · debian · bookworm; nvd · rclone · debian · 12
1.60.1+dfsg-2· all · bookwormAffected
nvd · rclone · debian · bookworm; nvd · rclone · debian · 12
- [rclone]Affected
Source package: [rclone]
Details (2)
1.60.1+dfsg-2+b5· amd64 · bookwormAffected
nvd · rclone · debian · bookworm; nvd · rclone · debian · 12
1.60.1+dfsg-2+b5· arm64 · bookwormAffected
nvd · rclone · debian · bookworm; nvd · rclone · debian · 12
[Debian 13 (Trixie)]
- [golang-github-rclone-rclone-dev]Affected
Source package: [rclone]
Details (2)
1.60.1+dfsg-4· all · trixieAffected
nvd · rclone · debian · 13
1.60.1+dfsg-4· all · trixieAffected
nvd · rclone · debian · 13
- [rclone]Affected
Details (2)
1.60.1+dfsg-4· amd64 · trixieAffected
nvd · rclone · debian · 13
1.60.1+dfsg-4· arm64 · trixieAffected
nvd · rclone · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-79783]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-79783]
- [https://security-tracker.debian.org/tracker/CVE-2026-79783]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79783.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2266.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]