CVE-2026-41176
High PUBLISHEDRclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution
Not yet in CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. The RC endpoint `options/set` is exposed without `AuthRequired: true`, but it can mutate global runtime configuration, including the RC option block itself. Starting in version 1.45.0 and prior to version 1.73.5, an unauthenticated attacker can set `rc.NoAuth=true`, which disables the authorization gate for many RC methods registered with `AuthRequired: true` on reachable RC servers that are started without global HTTP authentication. This can lead to unauthorized access to sensitive administrative functionality, including configuration and operational RC methods. Version 1.73.5 patches the issue.
- CVE Published
- Apr 22, 2026
- Exploitation Reported
- Jun 03, 2026
- CVSS
- 9.2 Critical
- EPSS
- 34.7%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Red Hat |
OpenShift API for Data Protection
|
All versions (default: unaffected) |
Unaffected |
| Red Hat |
OpenShift API for Data Protection
|
All versions (default: unaffected) |
Unaffected |
| Red Hat |
OpenShift API for Data Protection
|
All versions (default: unaffected) |
Unaffected |
| Red Hat |
Red Hat Advanced Cluster Management for Kubernetes 2
|
All versions (default: unaffected) |
Unaffected |
| rclone |
rclone
|
>= 1.45.0, < 1.73.5 |
Affected |
CVE References
- https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx github.com · CVE Record https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx
- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/config.go github.com · CVE Record https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1...
- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/rcserver/rcserver.go github.com · CVE Record https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| The Shadowserver First | 2026-06-03 00:00 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-41176.yaml | Jun 01, 2026 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
Exploited in the wild
Recorded 2026-06-03 00:00:00 UTC · The Shadowserver
Proof of concept available
Recorded 2026-06-12 14:21:13 UTC · Nuclei Templates
Weaknesses (CWE)
-
External Control of System or Configuration Setting
-
Missing Authentication for Critical Function
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-41176.yaml | Jun 01, 2026 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
nuclei · Created Unknown
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
14:21 UTC about 1 month ago14:21 UTC · about 1 month ago
Public PoC available
Public proof-of-concept code published
-
00:00 UTC about 2 months ago00:00 UTC · about 2 months ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
15:34 UTC about 2 months ago15:34 UTC · about 2 months ago
Nuclei template available
Scanner coverage available
-
23:57 UTC 3 months ago23:57 UTC · 3 months ago
CVE published
Vulnerability disclosed publicly
-
16:34 UTC 3 months ago16:34 UTC · 3 months ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2026-41176
{
"cve_id": "CVE-2026-41176",
"title": "Rclone: Unauthenticated options/set allows runtime auth bypass, leading to se...",
"affected_vendor": "rclone",
"affected_product": "rclone",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "High",
"cvss_score": 9.2,
"epss_score": 0.34734,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}