CVE-2026-27626
OliveTin gives access to predefined shell commands from a web interface.
Published Feb 25, 2026 · updated Jun 17, 2026 · olivetin olivetin
OliveTin gives access to predefined shell commands from a web interface. In versions up to and including 3000.10.0, OliveTin's shell mode safety check ( ) blocks several dangerous argument types but not . A user supplying a -typed argument can inject shell metacharacters that execute arbitrary OS commands. A second independent vector allows unauthenticated RCE via webhook-extracted JSON values that skip type safety checks entirely before reaching . When exploiting vector 1, any authenticated user (registration enabled by default, by default) can execute arbitrary OS commands on the OliveTin host with the permissions of the OliveTin process. When exploiting vector 2, an unauthenticated attacker can achieve the same if the instance receives webhooks from external sources, which is a primary OliveTin use case. When an attacker exploits both vectors, this results in unauthenticated RCE on any OliveTin instance using Shell mode with webhook-triggered actions. As of time of publication, a patched version is not available.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Feb 25, 2026 · NIST NVD
Detected
OliveTin gives access to predefined shell commands from a web interface. In versions up to and including 3000.10.0, OliveTin's shell mode safety check ( ) blocks several dangerous argument types but not . A user supplying a -typed argument can inject shell metacharacters that execute arbitrary OS commands. A second independent vector allows unauthenticated RCE via webhook-extracted JSON values tha
Jun 17, 2026 · NIST NVD
Updated
OliveTin gives access to predefined shell commands from a web interface. In versions up to and including 3000.10.0, OliveTin's shell mode safety check ( ) blocks several dangerous argument types but not . A user supplying a -typed argument can inject shell metacharacters that execute arbitrary OS commands. A second independent vector allows unauthenticated RCE via webhook-extracted JSON values tha
Affected
- cpe olivetin/olivetinversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-27626
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-27626
OliveTin gives access to predefined shell commands from a web interface. In versions up to and including 3000.10.0, OliveTin's shell mode safety check ( ) blocks several dangerous argument types but not . A user supplying a -typed argu
nvd.nist.gov