CVE-2026-53793
published 2026-08-13CVE-2026-53793: rsync before 3.5.0 contains a path confinement bypass vulnerability that allows remote clients to escape the intended inner-module root confinement by…
PriorityP353high7.4CVSS 3.1
AVNACHPRNUINSUCHIHAN
EPSS
0.39%
32.6th percentile
rsync before 3.5.0 contains a path confinement bypass vulnerability that allows remote clients to escape the intended inner-module root confinement by constructing paths that resolve outside the chroot boundary when the module root contains a /./ boundary marker. Attackers can exploit improper handling of the /./ notation or forge delta-basis transfers referencing xname paths that cross the /./ boundary to gain unauthorized read or write access to files outside the module's subtree.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| rsyncproject | rsync | <= 3.4.4 | — |
| samba | rsync | — | — |
CVSS provenance
nvdv3.17.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
nvdv4.09.1CRITICALCVSS:4.0/AV:N/AC:H/AT:P/PR:N/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
vendor_redhat7.4HIGH
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No public exploits indexed.
Bugzilla
CVE-2026-53793 rsync-bpc: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [epel-all]
bugzilla·2026-08-21·CVSS 7.4
CVE-2026-53793 [HIGH] CVE-2026-53793 rsync-bpc: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [epel-all]
CVE-2026-53793 rsync-bpc: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
rsync before 3.5.0 contains a path confinement bypass vulnerability that allows remote clients to escape the intended inner-module root confinement by constructing paths that resolve outside the chroot boundary when the module root contains a /./ boundary marker. Attackers can exploit improper handling of the /./ notation or forge delta-basis transfers referencing xname paths that cross the /./ boundary to gain unauthorized read or write access to files ou
Bugzilla
CVE-2026-53793 rsync: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [fedora-all]
bugzilla·2026-08-21·CVSS 7.4
CVE-2026-53793 [HIGH] CVE-2026-53793 rsync: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [fedora-all]
CVE-2026-53793 rsync: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
rsync before 3.5.0 contains a path confinement bypass vulnerability that allows remote clients to escape the intended inner-module root confinement by constructing paths that resolve outside the chroot boundary when the module root contains a /./ boundary marker. Attackers can exploit improper handling of the /./ notation or forge delta-basis transfers referencing xname paths that cross the /./ boundary to gain unauthorized read or write access to files outs
Bugzilla
CVE-2026-53793 rsync-bpc: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [fedora-all]
bugzilla·2026-08-21·CVSS 7.4
CVE-2026-53793 [HIGH] CVE-2026-53793 rsync-bpc: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [fedora-all]
CVE-2026-53793 rsync-bpc: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
rsync before 3.5.0 contains a path confinement bypass vulnerability that allows remote clients to escape the intended inner-module root confinement by constructing paths that resolve outside the chroot boundary when the module root contains a /./ boundary marker. Attackers can exploit improper handling of the /./ notation or forge delta-basis transfers referencing xname paths that cross the /./ boundary to gain unauthorized read or write access to files
Bugzilla
CVE-2026-53793 rsync: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode
bugzilla·2026-08-13·CVSS 7.4
CVE-2026-53793 [HIGH] CVE-2026-53793 rsync: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode
CVE-2026-53793 rsync: rsync < 3.5.0 Path Confinement Bypass via /./ Boundary Marker in Chroot Mode
rsync before 3.5.0 contains a path confinement bypass vulnerability that allows remote clients to escape the intended inner-module root confinement by constructing paths that resolve outside the chroot boundary when the module root contains a /./ boundary marker. Attackers can exploit improper handling of the /./ notation or forge delta-basis transfers referencing xname paths that cross the /./ boundary to gain unauthorized read or write access to files outside the module's subtree.
2026-08-13
Published