CVE-2026-53788 affecting package rsync for versions less than 3.5.0-1
rsync before 3.5.0 contains a newline injection vulnerability in the name-converter uid/gid mapping interface that allows local attackers to forge protocol messages by creating user or group names containing newline characters. Attackers can inject malicious newline characters into names communicated over the pipe-based line-oriented protocol to cause the rsync daemon to process attacker-influenced data as legitimate protocol input, corrupting uid/gid mapping logic.
AZL-95819
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:AZL-95819
rsync
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 3.5.0-1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.5.0-1"
}
]
}
],
"package": {
"name": "rsync",
"purl": "pkg:rpm/azure-linux/rsync",
"ecosystem": "Azure Linux:3"
},
"database_specific": {
"source": "https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-95819.json"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #13937 · Revision 1
- Added to Heist Feed
- Publisher date