CVE-2026-70463

Name
CVE-2026-70463
Description
rsync 3.1.0 before 3.5.0 contains an authorization bypass in auth users directive parsing. The auth users parser uses comma-only tokenization when splitting the user list, which fails to correctly handle entries of the form @Group Name where the group name contains a space. The space within the group name causes the parser to split the entry at the space boundary, discarding the deny rule associated with the group. An authenticated user whose username or group membership would be denied by an @Group Name auth users entry can connect to a restricted module because the deny rule is silently discarded during parsing.
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-pfj8-79vq-xgvr
disclosure@vulncheck.com https://www.vulncheck.com/advisories/rsync-authorization-bypass-via-auth-users-directive-parsing

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:* rsync >= 3.1.0 < 3.5.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
rsync edge-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync edge-main 3.4.4-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.4.3-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.4.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.4.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.4.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.4.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.4.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.4.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.3.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.2.4-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.2.4-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.2.3-r5 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.2.3-r4 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.2.3-r3 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync edge-main 3.1.2-r7 None possibly vulnerable
rsync 3.24-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync 3.24-main 3.4.3-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.23-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync 3.23-main 3.4.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.23-main 3.4.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.23-main 3.4.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.23-main 3.4.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.22-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync 3.22-main 3.4.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.22-main 3.4.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.22-main 3.4.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.22-main 3.4.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.22-main 3.4.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.22-main 3.4.0-r0 None possibly vulnerable
rsync 3.22-main 3.2.4-r2 None possibly vulnerable
rsync 3.22-main 3.1.2-r7 None possibly vulnerable
rsync 3.21-main 3.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
rsync 3.21-main 3.4.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.21-main 3.4.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.21-main 3.4.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.21-main 3.4.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.21-main 3.4.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.21-main 3.3.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.21-main 3.3.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.21-main 3.2.4-r2 None possibly vulnerable
rsync 3.21-main 3.1.2-r7 None possibly vulnerable
rsync 3.20-main 3.4.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.20-main 3.4.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.20-main 3.4.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.20-main 3.4.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.20-main 3.4.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.20-main 3.3.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.20-main 3.2.4-r2 None possibly vulnerable
rsync 3.20-main 3.1.2-r7 None possibly vulnerable
rsync 3.19-main 3.4.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.19-main 3.4.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.19-main 3.2.7-r4 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
rsync 3.19-main 3.2.4-r2 None possibly vulnerable
rsync 3.19-main 3.1.2-r7 None possibly vulnerable