CVE-2026-53795: CWE-59 Improper Link Resolution Before File Access ('Link Following') in RsyncProject rsync
rsync before 3.5.0 contains an arbitrary file write vulnerability that allows attackers to write files outside the intended destination tree by specifying an absolute path via --temp-dir or --link-dest options. The rename-confinement logic is bypassed when these options resolve to paths outside the destination tree, enabling attacker-controlled values to write files to arbitrary locations accessible to the rsync process.
CVE-2026-53795: CWE-59 Improper Link Resolution Before File Access ('Link Following') in RsyncProject rsync
Description
rsync before 3.5.0 contains an arbitrary file write vulnerability that allows attackers to write files outside the intended destination tree by specifying an absolute path via --temp-dir or --link-dest options. The rename-confinement logic is bypassed when these options resolve to paths outside the destination tree, enabling attacker-controlled values to write files to arbitrary locations accessible to the rsync process.
CVSS v4.0
Score 7.2high
Affected software
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Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-06-10T20:14:32.827Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7ddec4bf8831d5395cfcab
Added to database: 08/13/2026, 15:12:04 UTC
Last updated: 08/13/2026, 15:12:04 UTC
Views: 1
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