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
This high-severity CVE scores 8.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 66% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.1
- EG Score
- 8.1(medium)
- EG Risk
- 52(Track)EG Risk 52/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity81% × 45%Exploitation0% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 34%
- KEV
- Not listed
Published
August 13, 2026
Last Modified
August 26, 2026
Advisory Details (3)
Auto-updated Aug 13, 2026rsync < 3.5.0 Arbitrary File Write via --temp-dir/--link-dest | Advisories | VulnCheck
https://www.vulncheck.com/advisories/rsync-arbitrary-file-write-via-temp-dir-link-destv3.5.0
Patch available: RsyncProject/rsync v3.5.0
https://github.com/RsyncProject/rsync/releases/tag/v3.5.0rsync: receiver write escape via an absolute --temp-dir / --link-dest disabling rename/link confinement · Advisory · RsyncProject/rsync · GitHub
Affected: 3.5.0. (Precise introduced-in ranges being finalised.)
https://github.com/RsyncProject/rsync/security/advisories/GHSA-m9vj-637x-v6pqWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 35× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-29 07:41 UTCEG score recompute
- 2026-08-28 21:41 UTCEPSS rescore
- 2026-08-27 16:16 UTCEG score recompute
- 2026-08-27 14:25 UTCEPSS rescore
- 2026-08-26 17:26 UTCEG score recompute
- 2026-08-26 14:46 UTCEPSS rescore
- 2026-08-25 21:04 UTCEG score recompute
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-24 23:05 UTCEG score recompute
- 2026-08-24 12:07 UTCEG score recompute
- 2026-08-23 03:10 UTCEG score recompute
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 05:13 UTCEG score recompute
- 2026-08-21 23:49 UTCEPSS rescore
- 2026-08-21 07:15 UTCEG score recompute
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-19 22:19 UTCEG score recompute
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-19 00:21 UTCEG score recompute
- 2026-08-18 13:48 UTCEPSS rescore
- 2026-08-17 15:11 UTCEG score recompute
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-16 17:14 UTCEG score recompute
- 2026-08-16 14:56 UTCEPSS rescore
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- 2026-08-16 06:15 UTCEG score recompute
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 08:18 UTCEG score recompute
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-14 21:19 UTCEG score recompute
- 2026-08-14 20:24 UTCEG score recompute
- 2026-08-14 13:14 UTCEG score recompute
- 2026-08-13 15:23 UTCEG score recompute
- 2026-08-13 15:12 UTCEG score recompute
- 2026-08-13 15:11 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
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