CVE-2026-88045 rclone - Denial of Service

rclone 1.75.0 contains a denial of service caused by improper handling of attacker-controlled Content-Length in S3 multipart streaming, letting network attackers exhaust memory or block request handlers, exploit requires network access.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.63% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
10 September 2026
Updated
15 October 2026
Weakness
CWE-789

Vendor fix

Update to version 1.75.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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