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CVE-2026-53802

Status: AnalyzedHigh (8.4)—

rsync before 3.5.0 contains an arbitrary file read vulnerability that allows attackers to read files accessible to the rsync daemon process by exploiting symlink following in input configuration file handling including --files-from, --password-file, and filter merge files. Attackers can place a symlink at a predictable --files-from or --password-file path, or supply a --files-from path that escapes the daemon module root, to read arbitrary files accessible to the rsync process.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

AV:L + PR:L sin UI indica escalada local; rsync lee archivos via symlink → T1005 (datos locales) y T1552 (credenciales en --password-file).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Update SoftwareActive Directory ConfigurationUser TrainingThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account Management

Affected technologies (1)

Samba — Rsync

CWEs

References

Raw JSON (NVD)

Show
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