CVE-2026-49980: Rclone is a command-line program to sync files and directories to and from different cloud storage providers

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-49980 is a critical-severity flaw (CVSS 9.8) affecting rclone. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.46.0 until 1.74.3, rclone rcd --rc-serve accepts unauthenticated GET and HEAD requests to paths of the form: /[remote:path]/object. The remote value is parsed from the URL and passed to normal backend initialization. Inline remote configuration can set backend options that execute local commands during initialization. As a result,

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-306, CWE-78
Published	2026-06-24
Last modified	2026-08-07

Publisher (CNA): GitHub, Inc. · Vendor: rclone

Last updated 2026-08-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-24 19:17 UTCPublished CVE record published
2026-08-07 12:18 UTCUpdated Record last modified

rclone rclone UPGRADE

Affected: >= 1.46 and < 1.74.3

Fixed in: 1.74.3

Safe to downgrade to: a release before 1.46

1. Check installed version

apt-cache policy rclone || rpm -q rclone || rclone --version

2. UPGRADE to 1.74.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rclone

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rclone

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.46 (Debian / Ubuntu)

apt-cache madison rclone sudo apt install rclone=<VERSION_BEFORE_1.46> sudo apt-mark hold rclone

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list rclone sudo dnf downgrade rclone-<VERSION_BEFORE_1.46> sudo dnf versionlock add rclone

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-49980?

rclone: upgrade to 1.74.3. Exact commands for each OS are on this page.

Is CVE-2026-49980 being exploited?

CVE-2026-49980 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-49980 affect?

CVE-2026-49980 affects rclone. Severity is critical (CVSS 9.8). Rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.46.0 until 1.74.3, rclone rcd --rc-serve accepts unauthenticated GET and HEAD requests to paths of the form: /[remote:path]

How urgent is CVE-2026-49980?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-116196 MEDIUM 5.3 UPGRADE Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live accou
CVE-2026-116195 MEDIUM 6.1 UPGRADE Rclone before 1.75.2 contains a path traversal vulnerability in the local backend's translateLink function, wh
CVE-2026-116194 MEDIUM 6.8 UPGRADE Rclone from 1.52.0 before 1.75.2 contains a cross-site request forgery vulnerability in the pCloud backend's l
CVE-2026-116193 MEDIUM 5.3 UPGRADE Rclone from 1.64.0 before 1.75.2 contains an authentication bypass vulnerability in serve webdav that lets una
CVE-2026-116192 MEDIUM 5.9 UPGRADE rclone from 1.37 before 1.74.2 contains a server-side request forgery vulnerability that allows unauthenticate

References

← Back to latest CVEs