---
title: "CVE-2026-53802\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-53802?format=md
keywords: index, follow
---

# CVE-2026-53802

Publication date 13 August 2026

Last updated 19 August 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**7.1 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2026-53802?format=md#impact-score)

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## Description

rsync before 3.5.0 contains an arbitrary file read vulnerability that
allows attackers to read files accessible to the rsync daemon process by
exploiting symlink following in input configuration file handling including
--files-from, --password-file, and filter merge files. Attackers can place
a symlink at a predictable --files-from or --password-file path, or supply
a --files-from path that escapes the daemon module root, to read arbitrary
files accessible to the rsync process.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| rsync | 26.04 LTS resolute | Needs evaluation |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |
| 14.04 LTS trusty | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:

CVSS v4.0

[CVSS v4.0](https://ubuntu.com/security/CVE-2026-53802?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2026-53802?format=md)

**Base score**

8.4 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Attack requirements | None |
  | Privileges required | Low |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | High |
  | Vulnerable system - Integrity impact | High |
  | Vulnerable system - Availability impact | None |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.4 · High |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-53802)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-53802)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-53802)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-53802)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-53802>
* <https://download.samba.org/pub/rsync/NEWS#3.5.0>