CVE-2026-70463

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Source
https://cve.org/CVERecord?id=CVE-2026-70463
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70463.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-70463
Aliases
  • GHSA-pfj8-79vq-xgvr
Downstream
Published
2026-08-13T14:42:07.126Z
Modified
2026-08-17T03:54:57.723261465Z
Severity
  • 8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
rsync 3.1.0 < 3.5.0 Authorization Bypass via auth users Directive Parsing
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70463.json",
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/rsyncproject/rsync

Affected ranges

Type
GIT
Repo
https://github.com/rsyncproject/rsync
Events
Introduced
bc58313bf7f42f0993f7279299e8137e0f14f01c
Fixed
471e17dc0d68233db84db11be82c9f62f4661214
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "3.1.0"
        },
        {
            "last_affected": "3.4.4"
        },
        {
            "fixed": "3.5.0"
        }
    ]
}

Affected versions

v3.*
v3.1.0
v3.1.1
v3.1.1pre1
v3.1.1pre2
v3.1.2
v3.1.2pre1
v3.1.3
v3.1.3pre1
v3.2.0
v3.2.0pre1
v3.2.0pre2
v3.2.0pre3
v3.2.1
v3.2.1pre1
v3.2.2
v3.2.2pre1
v3.2.2pre2
v3.2.2pre3
v3.2.3
v3.2.3pre1
v3.2.4
v3.2.4pre1
v3.2.4pre2
v3.2.4pre3
v3.2.4pre4
v3.2.5
v3.2.5pre1
v3.2.5pre2
v3.2.6
v3.2.7
v3.2.7pre1
v3.3.0
v3.3.0pre1
v3.4
v3.4.0
v3.4.1
v3.4.2
v3.4.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70463.json"