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TI-2026-80210 Aliases CVE-2026-116192GHSA-j48m-mpf8-5cpg

Server-side request forgery in rclone via --rc-serve remote roots

Priority HIGH 69CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-918 and the CVSS impact.

Summary

rclone from 1.37 before 1.74.2 contains a server-side request forgery flaw (CWE-918) in its --rc-serve remote handling. A double slash root on an existing named remote lets an unauthenticated attacker redirect http and netstorage backend requests to attacker-chosen hosts. The attacker can read the responses, capture configured custom headers, or obtain valid NetStorage request signatures.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

rclone from 1.37 before 1.74.2 contains a server-side request forgery vulnerability that allows unauthenticated attackers to redirect http and netstorage backend requests by supplying a double-slash root on an existing named remote via --rc-serve. Attackers can make HEAD/GET requests to attacker-chosen hosts to read responses, capture configured custom headers, or obtain valid NetStorage request signatures.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00223 13th percentileScored 2026-11-07
Fix Partial rclone (rclone): 1.74.2Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
rclonerclone1.37 to before 1.74.21.74.2Patch availableCNA
  • rclone Vendorrclone Affected 1.37 to before 1.74.2 Fixed in 1.74.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*1.37 to before 1.74.2Vulnerablerclone
  • cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:* Versions 1.37 to before 1.74.2 Vulnerable ·rclone

Remediation

Upgrade rclone to version 1.74.2, which fixes this issue. Red Hat lists Cryostat 4 and Red Hat Advanced Cluster Management for Kubernetes 2 as affected with no fix available.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA rclone (rclone) Fixed in 1.74.2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Cryostat 4AffectedNo fix yet: Fix deferred
Red Hat Advanced Cluster Management for Kubernetes 2AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-25 Threatist record created from CVE-2026-116192
  2. 2026-10-26 Affected versions changed · Red Hat
  3. 2026-10-26 CVSS score added · Red Hat
  4. 2026-10-26 Priority changed: MEDIUM → LOW
  5. 2026-10-27 Alias added: GHSA-j48m-mpf8-5cpg
  6. 2026-11-04 CISA SSVC decision points changed
  7. 2026-11-04 Priority changed: LOW → HIGH

References

Advisory 1

  • TI-2026-60044 rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass CVSS 3.1CRITICAL 9.8
  • TI-2026-29802 RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution CVSS 4.0CRITICAL 9.2
  • TI-2026-29799 Rclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution CVSS 4.0CRITICAL 9.2
  • TI-2026-42602 Path traversal in rclone CVSS 3.1HIGH 8.8
  • TI-2026-39407 rclone: Unvalidated symlink target in local `--links` — arbitrary file write from an untrusted remote CVSS 3.1HIGH 8.8
  • TI-2026-80211 Authentication bypass in rclone serve webdav via OPTIONS requests CVSS 4.0MEDIUM 6.9
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences