RsyncProject Rsync up to 3.4.x Remove Source Files unlink race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.52

Summaryinfo

A vulnerability was found in RsyncProject Rsync up to 3.4.x. It has been classified as problematic. Affected is the function unlink of the component Remove Source Files. The manipulation leads to race condition. This vulnerability is uniquely identified as CVE-2026-53800. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in RsyncProject Rsync up to 3.4.x and classified as problematic. This issue affects the function unlink of the component Remove Source Files. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is integrity, and availability. The summary by CVE is:

rsync before 3.5.0 contains a symlink race condition vulnerability in the --remove-source-files feature that allows attackers with symlink creation access to cause arbitrary file deletion. Attackers can atomically substitute a symlink for a source file between transfer completion and the unlink() call, causing rsync to delete the symlink target rather than the intended source file.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-53800 since 06/10/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available.

Upgrading to version 3.5.0 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Rsync 3.5.0

Timelineinfo

06/10/2026 CVE reserved
08/13/2026 +64 days Advisory disclosed
08/13/2026 +0 days VulDB entry created
08/13/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-53800 (🔒)
GCVE (CVE): GCVE-0-2026-53800
GCVE (VulDB): GCVE-100-389597

Entryinfo

Created: 08/13/2026 17:42
Changes: 08/13/2026 17:42 (57)
Complete: 🔍
Cache ID: 216::103

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