CVE-2026-49980Network attack vectorHinoki check available

Unauthenticated file-read and command execution via inline remotes

Published Jun 24, 2026 · Updated Jun 24, 2026

Missing authentication in rclone 1.46.0 through 1.74.2 allows remote attackers to read local files via crafted RC HTTP paths. The --rc-serve handler parses the remote name from an unauthenticated GET or HEAD path and initializes it, so inline local remotes read files and backend options in 1.55.0 and later execute commands. Reachability requires the RC API and --rc-serve, an attacker-reachable listener, and no global RC HTTP authentication; execution uses the rclone process account.

CVSS severity9.8
Critical
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authentication in rclone 1.46.0 through 1.74.2 allows remote attackers to read local files via crafted RC HTTP paths. The --rc-serve handler parses the remote name from an unauthenticated GET or HEAD path and initializes it, so inline local remotes read files and backend options in 1.55.0 and later execute commands. Reachability requires the RC API and --rc-serve, an attacker-reachable listener, and no global RC HTTP authentication; execution uses the rclone process account.

The record

CVE
CVE-2026-49980
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Rclone
Product
rclone
Classifications
CWE-306, CWE-78, T1190, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.46.0, < 1.74.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rclone · rcloneversion=>= 1.46.0, < 1.74.3

Published CVSS scores

9.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1redhat-SADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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