CVE-2026-70456

Summary

rsync 3.0.1 before 3.5.0 contains an out-of-bounds write vulnerability in the read_args() function that allows a malicious sender to corrupt adjacent heap memory by sending a crafted argument list. When the argument count causes the argv allocation to be exactly full, the trailing NULL terminator is written one slot beyond the allocation boundary, corrupting adjacent heap memory.

Affected Software

Weaknesses

• CWE-787: CWE-787 Out-of-bounds Write

References

• https://github.com/RsyncProject/rsync/security/advisories/GHSA-78jc-79jv-v6rw
• https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
• https://www.vulncheck.com/advisories/rsync-heap-out-of-bounds-write-via-read-args

• ←Previous
• Next→