Medium severity6.5NVD Advisory· Published Aug 13, 2026· Updated Nov 3, 2026
CVE-2026-70462
CVE-2026-70462
Description
rsync 3.1.0 before 3.5.0 contains a signed integer overflow vulnerability in the I/O timeout implementation that allows attackers to permanently disable connection timeouts by injecting MSG_IO_TIMEOUT messages carrying non-positive (zero or negative) values. Attackers can craft malicious MSG_IO_TIMEOUT messages that cause the timeout variable to wrap to a non-positive value, preventing the timeout check from firing and enabling idle or stalled connections to hold daemon slots indefinitely, leading to resource exhaustion.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- osv-coords2 versionspkg:rpm/opensuse/rsync&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/rsync&distro=openSUSE%20Leap%2016.0
< 3.5.1-1.1+ 1 more
- (no CPE)range: < 3.5.1-1.1
- (no CPE)range: < 3.4.1-160000.6.1
Patches
Vulnerability mechanics
References
3- github.com/RsyncProject/rsync/security/advisories/GHSA-j9wh-5jmp-2m64nvdVendor Advisory
- www.vulncheck.com/advisories/rsync-signed-integer-overflow-via-msg-io-timeoutnvdThird Party Advisory
- github.com/RsyncProject/rsync/releases/tag/v3.5.0nvdRelease Notes
News mentions
1- Rsync: 25 Vulnerabilities Disclosed Together, Affecting Versions Before 3.5.0Vypr Intelligence · Aug 13, 2026