CVE-2026-119741
High · 7.5CVSS
7.5
EPSS
0.6%
Published
Nov 3, 2026
CISA due date
—
The record
rsync through 3.5.1 contains a denial of service vulnerability in the delta-transfer sender's hash_search() in match.c that allows malicious receivers to trigger unbounded strong-checksum work at consecutive offsets. Unauthenticated attackers pulling from a public daemon module can supply weak checksums colliding with consecutive rolling windows plus non-matching strong checksums, exhausting sender CPU across concurrent connections.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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