CVE-2026-53788

Name
CVE-2026-53788
Description
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
disclosure@vulncheck.com https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
disclosure@vulncheck.com https://github.com/RsyncProject/rsync/security/advisories/GHSA-p4c5-8c68-5fjq
disclosure@vulncheck.com https://www.vulncheck.com/advisories/rsync-newline-injection-via-name-converter-uid-gid-mapping

Match rules

CPE URI Source package Min version Max version

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
rsync edge-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync 3.24-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync 3.23-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync 3.22-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync 3.21-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed