CVE-2026-41179 (GCVE-0-2026-41179)
Vulnerability from cvelistv5 – Published: 2026-04-23 00:03 – Updated: 2026-07-15 00:59
VLAI
EPSS
VEX
Title
RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution
Summary
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/rclone/rclone/security/advisor… | x_refsource_CONFIRM |
| https://github.com/rclone/rclone/commit/2a9e952b3… | x_refsource_MISC |
| https://github.com/rclone/rclone/blob/bf55d5e6d37… | x_refsource_MISC |
| https://github.com/rclone/rclone/blob/bf55d5e6d37… | x_refsource_MISC |
| https://github.com/rclone/rclone/blob/bf55d5e6d37… | x_refsource_MISC |
| https://github.com/rclone/rclone/releases/tag/v1.73.5 | x_refsource_MISC |
| https://rclone.org/changelog/#v1-73-5-2026-04-19 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-41179 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2460988 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| rclone | rclone |
Affected:
>= 1.48.0, < 1.73.5
|
|
| Red Hat | OpenShift API for Data Protection |
cpe:/a:redhat:openshift_api_data_protection:1 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 |
cpe:/a:redhat:acm:2 |
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},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-41179\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-27T13:33:03.465519Z\"}}}], \"references\": [{\"url\": \"https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-23T12:33:39.859Z\"}}], \"cna\": {\"title\": \"RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution\", \"source\": {\"advisory\": \"GHSA-jfwf-28xr-xw6q\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 9.2, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"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\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"rclone\", \"product\": \"rclone\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 1.48.0, \u003c 1.73.5\"}]}], \"references\": [{\"url\": \"https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q\", \"name\": \"https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/rclone/rclone/commit/2a9e952b38e03a96bf40c9eb6e8e22199865ee3b\", \"name\": \"https://github.com/rclone/rclone/commit/2a9e952b38e03a96bf40c9eb6e8e22199865ee3b\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/backend/webdav/webdav.go\", \"name\": \"https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/backend/webdav/webdav.go\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/operations/rc.go\", \"name\": \"https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/operations/rc.go\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/cache.go\", \"name\": \"https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/cache.go\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/rclone/rclone/releases/tag/v1.73.5\", \"name\": \"https://github.com/rclone/rclone/releases/tag/v1.73.5\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://rclone.org/changelog/#v1-73-5-2026-04-19\", \"name\": \"https://rclone.org/changelog/#v1-73-5-2026-04-19\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-306\", \"description\": \"CWE-306: Missing Authentication for Critical Function\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-05-20T01:36:16.265Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-41179\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-20T01:36:16.265Z\", \"dateReserved\": \"2026-04-17T16:34:45.526Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-04-23T00:03:36.282Z\", \"assignerShortName\": \"GitHub_M\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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