CVE search · CVE-2026-53799
CVE-2026-53799
high 7.2
rsync before 3.5.0 contains a symlink race condition vulnerability that allows local attackers to cause rsync to apply arbitrary ACLs or extended attributes to unintended files by substituting a symlink at a predictable destination path between the file write and the subsequent acl_set_file() or lsetxattr() call. Attackers can exploit this timing window to redirect ACL and xattr application through a crafted symlink to files outside the intended destination tree, potentially granting elevated permissions and enabling local privilege escalation.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- disclosure@vulncheck.com
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 4.0 | high 7.2 | CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
disclosure@vulncheck.comSecondary |
| CVSS 3.1 | medium 6.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
disclosure@vulncheck.comSecondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- samba · rsync
References
- https://github.com/RsyncProject/rsync/releases/tag/v3.5.0ProductRelease Notes
- https://github.com/RsyncProject/rsync/security/advisories/GHSA-phxh-hjqv-39c9Vendor Advisory
- https://www.vulncheck.com/advisories/rsync-symlink-race-condition-via-acl-xattr-applicationRelease NotesThird Party Advisory