Rsync < 3.4.3 Integer Overflow Information Disclosure
CVE-2026-43618 is fixed in 5 products on 1 platform, first by rsync 3.1.2-2.1ubuntu1.6+esm3, released May 19, 2026. It is not reported as exploited. Patch Radar priority: High.
The rsync utility enables the users to copy and synchronize files locally or across a network. Synchronization with rsync is fast because rsync only sends the differences in files over the network instead of sending whole files. The rsync utility is also used as a mirroring tool. Security Fix(es): * rsync: rsync: Remote memory disclosure via integer overflow in compressed-token decoding (CVE-2026-43618) * rsync: TOCTOU symlink race condition allowing local privilege escalation in daemon mode without chroot. (CVE-2026-29518) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rsync · Debian 12.15 (bookworm) | 3.2.7-1+deb12u5 | DEBIAN-CVE-2026-43618 | May 27, 2026 |
| rsync · Debian 13.5 (trixie) | 3.4.1+ds1-5+deb13u3 | DEBIAN-CVE-2026-43618 | May 27, 2026 |
| rsync · Debian 14 | 3.4.3+ds1-1 | DEBIAN-CVE-2026-43618 | May 27, 2026 |
| rsync · RHEL 10 | 3.4.4-1.el10_2 | RHSA-2026:26332 | May 20, 2026 |
| rsync · RHEL 8 | 0:3.1.3-27.el8_10 | RHSA-2026:26408 | Jun 24, 2026 |
| rsync · RHEL 9 | 0:3.2.5-7.el9_8.2 | RHSA-2026:26410 | Jun 24, 2026 |
| rsync · Ubuntu 18.04.6 LTS (bionic) | 3.1.2-2.1ubuntu1.6+esm3 | rsync 3.1.2-2.1ubuntu1.6+esm3 | May 19, 2026 |
| rsync · Ubuntu 20.04 LTS (focal) | 3.1.3-8ubuntu0.9+esm1 | rsync 3.1.3-8ubuntu0.9+esm1 | May 19, 2026 |
| rsync · Ubuntu 22.04.1 LTS (jammy) | 3.2.7-0ubuntu0.22.04.6 | rsync 3.2.7-0ubuntu0.22.04.6 | May 27, 2026 |
| rsync · Ubuntu 24.04.5 LTS (noble) | 3.2.7-1ubuntu1.4 | rsync 3.2.7-1ubuntu1.4 | May 27, 2026 |
| rsync · Ubuntu 25.10 (questing) | 3.4.1+ds1-5ubuntu1.2 | rsync 3.4.1+ds1-5ubuntu1.2 | May 27, 2026 |
| rsync · Ubuntu 26.04.1 LTS (resolute) | 3.4.1+ds1-7ubuntu0.2 | rsync 3.4.1+ds1-7ubuntu0.2 | May 19, 2026 |
| rsync · almalinux 10 | 3.4.4-1.el10_2 | ALSA-2026:26332 | Jun 16, 2026 |
| rsync · almalinux 8 | 3.1.3-27.el8_10 | ALSA-2026:26408 | Jun 16, 2026 |
| rsync · almalinux 9 | 3.2.5-7.el9_8.2 | ALSA-2026:26410 | Jun 16, 2026 |
| rsync · amzn 2023 | 3.4.0-1.amzn2023.0.4 | ALAS2023-2026-1801 | Jun 8, 2026 |
| rsync · ol 10 | 0:3.4.4-1.el10_2 | ELSA-2026-26332 | Jul 16, 2026 |
| rsync · ol 8 | 0:3.1.3-27.el8_10 | ELSA-2026-26408 | Jun 16, 2026 |
| rsync · ol 9 | 0:3.2.5-7.el9_8.2 | ELSA-2026-26410 | Jun 23, 2026 |
| rsync · opensuse-leap 16.0 | 3.4.1-160000.6.1 | OPENSUSE-SU-2026:21650-1 | Aug 26, 2026 |
| rsync · rocky 10 | 0:3.4.4-1.el10_2 | RLSA-2026:26332 | Jun 19, 2026 |
| rsync · rocky 8 | 0:3.1.3-27.el8_10 | RLSA-2026:26408 | Jun 17, 2026 |
| rsync · rocky 9 | 0:3.2.5-7.el9_8.2 | RLSA-2026:26410 | Jun 17, 2026 |
| rsync · sles 16.0 | 3.4.1-160000.6.1 | SUSE-SU-2026:23323-1 | Aug 26, 2026 |
| rsync-daemon · RHEL 8 | 0:3.1.3-27.el8_10 | RHSA-2026:26408 | Jun 24, 2026 |
| rsync-daemon · RHEL 9 | 0:3.2.5-7.el9_8.2 | RHSA-2026:26410 | Jun 24, 2026 |
| rsync-daemon · almalinux 10 | 3.4.4-1.el10_2 | ALSA-2026:26332 | Jun 16, 2026 |
| rsync-daemon · almalinux 8 | 3.1.3-27.el8_10 | ALSA-2026:26408 | Jun 16, 2026 |
| rsync-daemon · almalinux 9 | 3.2.5-7.el9_8.2 | ALSA-2026:26410 | Jun 16, 2026 |
| rsync-daemon · amzn 2023 | 3.4.0-1.amzn2023.0.4 | ALAS2023-2026-1801 | Jun 8, 2026 |
| rsync-daemon · ol 10 | 0:3.4.4-1.el10_2 | ELSA-2026-26332 | Jul 16, 2026 |
| rsync-daemon · ol 8 | 0:3.1.3-27.el8_10 | ELSA-2026-26408 | Jun 16, 2026 |
| rsync-daemon · ol 9 | 0:3.2.5-7.el9_8.2 | ELSA-2026-26410 | Jun 23, 2026 |
| rsync-debuginfo · amzn 2023 | 3.4.0-1.amzn2023.0.4 | ALAS2023-2026-1801 | Jun 8, 2026 |
| rsync-debugsource · amzn 2023 | 3.4.0-1.amzn2023.0.4 | ALAS2023-2026-1801 | Jun 8, 2026 |
| rsync-rrsync · RHEL 9 | 0:3.2.5-7.el9_8.2 | RHSA-2026:26410 | Jun 24, 2026 |
| rsync-rrsync · almalinux 10 | 3.4.4-1.el10_2 | ALSA-2026:26332 | Jun 16, 2026 |
| rsync-rrsync · almalinux 9 | 3.2.5-7.el9_8.2 | ALSA-2026:26410 | Jun 16, 2026 |
| rsync-rrsync · ol 10 | 0:3.4.4-1.el10_2 | ELSA-2026-26332 | Jul 16, 2026 |
| rsync-rrsync · ol 9 | 0:3.2.5-7.el9_8.2 | ELSA-2026-26410 | Jun 23, 2026 |
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