CVE-2026-53796rsync < 3.5.0 TOCTOU Race Condition via Destination Directory Handling
Updated under an hour ago ()
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It affects RsyncProject rsync. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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rsync before 3.5.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability in the non-daemon receiver's destination directory handling that allows an attacker who can manipulate destination path parent components to redirect file writes to unintended locations. Attackers can substitute a symlink for a component of the destination path between the path resolution and chdir() call, causing the receiver's working directory to be established outside the intended destination tree so that subsequent relative-path file writes land in unintended filesystem locations.
- CVSS
- 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weakness (CWE)
- CWE-59, CWE-367
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Undergoing Analysis
- Record last updated
- Aug 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
RsyncProject rsync rsyncproject:rsync (from the name) | through 3.4.4; 3.5.0 not affected | CNA record |
References
- https://github.com/RsyncProject/rsync/security/advisories/GHSA-w75h-ccff-w53mvendor-advisory
- https://github.com/RsyncProject/rsync/releases/tag/v3.5.0release-notes
- https://www.vulncheck.com/advisories/rsync-toctou-race-condition-via-destination-directory-handlingthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.