CVE-2026-49980: Rclone command injection (CVSS 9.8)

Description

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, a single unauthenticated GET or HEAD request can execute a command as the rclone process user. This vulnerability is fixed in 1.74.3.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Rclone≥ 1.46 < 1.74.3

Remediation

Fixed in

Rclone≥ 1.74.3

Patch & vendor advisories

https://github.com/rclone/rclone/security/advisories/GHSA-qw24-gh76-8rvv

References

https://access.redhat.com/security/cve/CVE-2026-49980Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2492478Issue TrackingThird Party Advisory
https://github.com/rclone/rclone/security/advisories/GHSA-qw24-gh76-8rvvMitigationVendor Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49980.jsonThird Party Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2026-49980 being actively exploited?

CVE-2026-49980 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.78%.

How severe is CVE-2026-49980?

CVE-2026-49980 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.78% probability of exploitation.

Which products are affected by CVE-2026-49980?

Affected products include Rclone.

How do I fix CVE-2026-49980?

Upgrade affected software to a fixed version, for example Rclone 1.74.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-49980 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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