CVE-2026-41035
Publication date 16 April 2026
Last updated 24 April 2026
Ubuntu priority
Description
In rsync 3.0.1 through 3.4.1, receive_xattr relies on an untrusted length value during a qsort call, leading to a receiver use-after-free. The victim must run rsync with -X (aka --xattrs). On Linux, many (but not all) common configurations are vulnerable. Non-Linux platforms are more widely vulnerable.
Read the notes from the security team
Why is this CVE low priority?
Per rsync developers this has no security impact
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| rsync | 26.04 LTS resolute |
Vulnerable
|
| 25.10 questing |
Vulnerable
|
|
| 24.04 LTS noble |
Vulnerable
|
|
| 22.04 LTS jammy |
Vulnerable
|
|
| 20.04 LTS focal |
Vulnerable
|
|
| 18.04 LTS bionic |
Vulnerable
|
|
| 16.04 LTS xenial |
Vulnerable
|
|
| 14.04 LTS trusty |
Vulnerable
|
Notes
mdeslaur
Per rsync developers, this is not an exploitable issue. "the attack is the equivalent of the user closing the socket themselves." Marking as low priority
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.4 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |