CVE-2026-79783CWE-732

CVE-2026-79783

Low · published August 25, 2026

CVSS v3.1
3.6
EPSS
0%
Percentile
12.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.6 · LOW
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
2.0 · CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00227 · 12.8th percentile
Weakness
CWE-732 · Incorrect Permission Assignment for Critical Resource
Published
2026-08-25T20:17Z
References (3)
https://github.com/rclone/rclone/security/advisories/GHSA-945v-v9p3-v5xw · [email protected]https://www.vulncheck.com/advisories/rclone-before-privilege-escalation-via-setuid-metadata · [email protected]https://github.com/rclone/rclone/security/advisories/GHSA-945v-v9p3-v5xw · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 27 AUG 06:46Z
    EPSS moved — → 0%
    epss
  • 25 AUG 15:16Z
    rclone before 1.74.4 Privilege Escalation via setuid Metadata
    cvelistv5