CVE-2026-43619

HIGH
MEDIUM Priority: 0.01 BB Relevance: 29/100
Published: 2026-05-20 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: Low
UI: None
AT: Present
VC: High
VI: High
VA: None

Description

Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module. Attackers with local filesystem access can exploit the timing window between path resolution and syscall execution by swapping symlinks to apply sender-supplied permissions, ownership, timestamps, or filenames to arbitrary files outside the intended module boundary on rsync daemons configured with 'use chroot = no'.

Affected Software (1)

VendorProductVersion
RsyncProject rsync 0 < 3.4.3

Bug Bounty Relevance

29 / 100
✓ No user interaction

CVSS Score

7.2 / 10.0 v4.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.14%
Raw Score 0.001360
Percentile 3.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00136
2026-11-12
0.00136
2026-11-10
0.00136
2026-11-09
0.00136
2026-11-08
0.00136

Intelligence Sources

mitre ref →