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CVE-2026-53789— rsync < 3.5.0 Arbitrary File Deletion via Malicious File List

Quick assessment

Affected
RsyncProject rsync
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RsyncProject Rsync是RsyncProject组织开源的一款速度快、功能极其强大的文件复制工具，可用于复制远程文件和本地文件。 RsyncProject Rsync 3.5.0之前版本存在输入验证错误漏洞，该漏洞源于路径处理不当，可能允许恶意发送者通过发送特制文件列表，导致rsync将隐含父目录条目重新分类或把合成路径作为传输根，从而扩大--delete操作范围，使接收者删除授权目标目录之外的文件。

CVSS 6.5 · Medium EPSS 0.36% · P27

Affected Version Matrix 2

VendorProduct Version RangeStatus
RsyncProject rsync ≤ 3.4.4 affected
3.5.0 unaffected
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I. Basic Information for CVE-2026-53789

Vulnerability Information
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Vulnerability Title
rsync < 3.5.0 Arbitrary File Deletion via Malicious File List
Source: CVE Program / CVE List V5
Vulnerability Description
rsync before 3.5.0 contains an improper path handling vulnerability that allows a malicious sender to expand the scope of --delete operations beyond the intended destination subtree by sending a crafted file list that causes rsync to reclassify implied parent directory entries or treat synthetic paths as the transfer root. Attackers can exploit multiple variants including implied parent reclassification, synthetic root path construction, legacy protocol behavior below version 30, and non-directory root handling to cause the receiver to delete files outside the authorized destination directory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在安全决策中依赖未经信任的输入
Source: CVE Program / CVE List V5
Vulnerability Title
RsyncProject Rsync 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RsyncProject Rsync是RsyncProject组织开源的一款速度快、功能极其强大的文件复制工具，可用于复制远程文件和本地文件。 RsyncProject Rsync 3.5.0之前版本存在输入验证错误漏洞，该漏洞源于路径处理不当，可能允许恶意发送者通过发送特制文件列表，导致rsync将隐含父目录条目重新分类或把合成路径作为传输根，从而扩大--delete操作范围，使接收者删除授权目标目录之外的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
RsyncProject rsync 0 ~ 3.4.4 -

II. Public POCs for CVE-2026-53789

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III. Intelligence Information for CVE-2026-53789

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Vendor Advisories for CVE-2026-53789 (1)

News Coverage for CVE-2026-53789 (1)

Vendor Pages for CVE-2026-53789 (1)

Same Patch Batch · RsyncProject · 2026-08-13 · 33 CVEs total

CVE-2026-53791 9.1 CRITICAL rsync < 3.5.0 Daemon IP Spoofing via PROXY Protocol Header
CVE-2026-70461 8.2 HIGH rsync 3.2.5 < 3.5.0 Heap Out-of-Bounds Write via files-from Entry
CVE-2026-70456 8.2 HIGH rsync 3.0.1 < 3.5.0 Heap Out-of-Bounds Write via read_args()
CVE-2026-70458 8.2 HIGH rsync 3.0.0 < 3.5.0 Out-of-Bounds Write via FLAG_HLINKED Handling
CVE-2026-53790 8.1 HIGH rsync < 3.5.0 Command Injection via Multiple Code Paths
CVE-2026-70463 8.1 HIGH rsync 3.1.0 < 3.5.0 Authorization Bypass via auth users Directive Parsing
CVE-2026-53795 8.1 HIGH rsync < 3.5.0 Arbitrary File Write via --temp-dir/--link-dest
CVE-2026-53783 8.1 HIGH rsync < 3.5.0 TOCTOU Race Condition Directory Escape via rrsync
CVE-2026-70460 8.1 HIGH rsync 2.3.3 < 3.5.0 Path Traversal via --partial-dir/--backup-dir Symlink
CVE-2026-70454 8.0 HIGH rsync < 3.5.0 TLS Certificate Validation Bypass via SSL/OpenSSL Mode
CVE-2026-53803 7.8 HIGH rsync < 3.5.0 Symlink Following Arbitrary File Overwrite
CVE-2026-70455 7.5 HIGH rsync 3.4.2 < 3.5.0 DoS via --zt Zstandard Compression Thread Exhaustion
CVE-2026-70464 7.5 HIGH rsync 2.0.0 < 3.5.0 Connection Slot Exhaustion DoS via Handshake Stall
CVE-2026-70453 7.5 HIGH rsync < 3.5.0 Algorithmic Complexity DoS via hash_search()
CVE-2026-53793 7.4 HIGH rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode
CVE-2026-70452 7.4 HIGH rsync 3.1.0 < 3.5.0 Access Control Bypass via DNS Resolution Failure
CVE-2026-53784 7.1 HIGH rsync < 3.5.0 Path Traversal via Symlink Module Root
CVE-2026-53785 7.1 HIGH rsync < 3.5.0 Path Traversal Write Escape via --relative Mode
CVE-2026-53802 7.1 HIGH rsync < 3.5.0 Arbitrary File Read via Symlink Following
CVE-2026-53788 6.5 MEDIUM rsync < 3.5.0 Newline Injection via name-converter uid/gid mapping

Showing top 20 of 33 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: rsync
Same vendor: RsyncProject
Same weakness: CWE-807

V. Comments for CVE-2026-53789

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