# CVE-2026-53803: rsync < 3.5.0 Symlink Following Arbitrary File Overwrite CVE-2026-53803 is fixed in 5 products on 1 platform, first by RHSA-2026:67463, released August 13, 2026. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2026-53803 - Priority: High - CVSS: 8.2 (Important) - EPSS: 0.0023 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Aug 13, 2026 - Weakness: Improper Link Resolution Before File Access ('Link Following') - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53803 ## Description rsync before 3.5.0 contains a symlink following vulnerability that allows local attackers to overwrite arbitrary files by placing a symlink at a predictable output path such as --log-file, --write-batch, or daemon-mode log and statistics paths. Attackers can exploit rsync's failure to reject symlinks during ancillary file writes to redirect output to arbitrary filesystem locations, achieving local privilege escalation on installations where rsync runs with elevated privileges such as setuid or privileged daemon configurations. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | rsync Debian 13.5 (trixie) | 3.5.0+ds1-0+deb13u1 | [DEBIAN-CVE-2026-53803](https://patchblox.com/security/data/fix/linux/debian-cve-2026-53803.md) | Aug 27, 2026 | | Linux | rsync Debian 14 | 3.5.0+ds1-1 | [DEBIAN-CVE-2026-53803](https://patchblox.com/security/data/fix/linux/debian-cve-2026-53803.md) | Aug 27, 2026 | | Linux | rsync RHEL 10 | 3.5.0-3.el10_2 | [RHSA-2026:67463](https://patchblox.com/security/data/fix/linux/rhsa-2026-67463.md) | Aug 13, 2026 | | Linux | rsync RHEL 8 | 0:3.1.3-28.el8_10 | [RHSA-2026:74095](https://patchblox.com/security/data/fix/linux/rhsa-2026-74095.md) | Oct 1, 2026 | | Linux | rsync RHEL 9 | 0:3.2.7-1.el9_8 | [RHSA-2026:67462](https://patchblox.com/security/data/fix/linux/rhsa-2026-67462.md) | Sep 19, 2026 | | Linux | rsync almalinux 10 | 3.5.0-3.el10_2 | [ALSA-2026:67463](https://patchblox.com/security/data/fix/linux/alsa-2026-67463.md) | Sep 14, 2026 | | Linux | rsync almalinux 8 | 3.1.3-28.el8_10 | [ALSA-2026:74095](https://patchblox.com/security/data/fix/linux/alsa-2026-74095.md) | Sep 30, 2026 | | Linux | rsync almalinux 9 | 3.2.7-1.el9_8 | [ALSA-2026:67462](https://patchblox.com/security/data/fix/linux/alsa-2026-67462.md) | Sep 14, 2026 | | Linux | rsync amzn 2023 | 3.5.1-1.amzn2023.0.1 | [ALAS2023-2026-3131](https://patchblox.com/security/data/fix/linux/alas2023-2026-3131.md) | Sep 28, 2026 | | Linux | rsync ol 10 | 0:3.5.0-3.el10_2 | [ELSA-2026-67463-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67463-0.md) | Sep 16, 2026 | | Linux | rsync ol 8 | 0:3.1.3-28.el8_10 | [ELSA-2026-74095](https://patchblox.com/security/data/fix/linux/elsa-2026-74095.md) | Oct 1, 2026 | | Linux | rsync ol 9 | 0:3.2.7-1.el9_8 | [ELSA-2026-67462-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67462-0.md) | Sep 16, 2026 | | Linux | rsync opensuse-leap 16.0 | 3.4.1-160000.6.1 | [OPENSUSE-SU-2026:21650-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21650-1.md) | Aug 26, 2026 | | Linux | rsync rocky 10 | 0:3.5.0-3.el10_2 | [RLSA-2026:67463](https://patchblox.com/security/data/fix/linux/rlsa-2026-67463.md) | Sep 15, 2026 | | Linux | rsync rocky 8 | 0:3.1.3-28.el8_10 | [RLSA-2026:74095](https://patchblox.com/security/data/fix/linux/rlsa-2026-74095.md) | Oct 1, 2026 | | Linux | rsync rocky 9 | 0:3.2.7-1.el9_8 | [RLSA-2026:67462](https://patchblox.com/security/data/fix/linux/rlsa-2026-67462.md) | Sep 15, 2026 | | Linux | rsync sles 15.6 | 3.2.7-150600.3.24.1 | [SUSE-SU-2026:3657-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3657-1.md) | Aug 20, 2026 | | Linux | rsync sles 15.7 | 3.2.7-150600.3.24.1 | [SUSE-SU-2026:3657-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3657-1.md) | Aug 20, 2026 | | Linux | rsync sles 16.0 | 3.4.1-160000.6.1 | [SUSE-SU-2026:23323-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23323-1.md) | Aug 26, 2026 | | Linux | rsync-daemon RHEL 8 | 0:3.1.3-28.el8_10 | [RHSA-2026:74095](https://patchblox.com/security/data/fix/linux/rhsa-2026-74095.md) | Oct 1, 2026 | | Linux | rsync-daemon RHEL 9 | 0:3.2.7-1.el9_8 | [RHSA-2026:67462](https://patchblox.com/security/data/fix/linux/rhsa-2026-67462.md) | Sep 19, 2026 | | Linux | rsync-daemon almalinux 10 | 3.5.0-3.el10_2 | [ALSA-2026:67463](https://patchblox.com/security/data/fix/linux/alsa-2026-67463.md) | Sep 14, 2026 | | Linux | rsync-daemon almalinux 8 | 3.1.3-28.el8_10 | [ALSA-2026:74095](https://patchblox.com/security/data/fix/linux/alsa-2026-74095.md) | Sep 30, 2026 | | Linux | rsync-daemon almalinux 9 | 3.2.7-1.el9_8 | [ALSA-2026:67462](https://patchblox.com/security/data/fix/linux/alsa-2026-67462.md) | Sep 14, 2026 | | Linux | rsync-daemon amzn 2023 | 3.5.1-1.amzn2023.0.1 | [ALAS2023-2026-3131](https://patchblox.com/security/data/fix/linux/alas2023-2026-3131.md) | Sep 28, 2026 | | Linux | rsync-daemon ol 10 | 0:3.5.0-3.el10_2 | [ELSA-2026-67463-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67463-0.md) | Sep 16, 2026 | | Linux | rsync-daemon ol 8 | 0:3.1.3-28.el8_10 | [ELSA-2026-74095](https://patchblox.com/security/data/fix/linux/elsa-2026-74095.md) | Oct 1, 2026 | | Linux | rsync-daemon ol 9 | 0:3.2.7-1.el9_8 | [ELSA-2026-67462-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67462-0.md) | Sep 16, 2026 | | Linux | rsync-debuginfo amzn 2023 | 3.5.1-1.amzn2023.0.1 | [ALAS2023-2026-3131](https://patchblox.com/security/data/fix/linux/alas2023-2026-3131.md) | Sep 28, 2026 | | Linux | rsync-debugsource amzn 2023 | 3.5.1-1.amzn2023.0.1 | [ALAS2023-2026-3131](https://patchblox.com/security/data/fix/linux/alas2023-2026-3131.md) | Sep 28, 2026 | | Linux | rsync-rrsync RHEL 9 | 0:3.2.7-1.el9_8 | [RHSA-2026:67462](https://patchblox.com/security/data/fix/linux/rhsa-2026-67462.md) | Sep 19, 2026 | | Linux | rsync-rrsync almalinux 10 | 3.5.0-3.el10_2 | [ALSA-2026:67463](https://patchblox.com/security/data/fix/linux/alsa-2026-67463.md) | Sep 14, 2026 | | Linux | rsync-rrsync almalinux 9 | 3.2.7-1.el9_8 | [ALSA-2026:67462](https://patchblox.com/security/data/fix/linux/alsa-2026-67462.md) | Sep 14, 2026 | | Linux | rsync-rrsync ol 10 | 0:3.5.0-3.el10_2 | [ELSA-2026-67463-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67463-0.md) | Sep 16, 2026 | | Linux | rsync-rrsync ol 9 | 0:3.2.7-1.el9_8 | [ELSA-2026-67462-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67462-0.md) | Sep 16, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. 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