CVE-2026-53541
OliveTin gives access to predefined shell commands from a web interface.
Published Aug 21, 2026 · updated Oct 14, 2026
OliveTin gives access to predefined shell commands from a web interface. The function in the executor is intended to discard any arguments not explicitly defined in the action's configuration. However, prior to commit ebffd9f040f791208aee1db2e5a8aecd1e3e603d, a special case allows any argument whose name starts with to bypass this filter. While two system arguments ( and ) are injected by OliveTin and overridden, all other -prefixed arguments supplied by the user pass through unmodified. These bypassed arguments are not type-checked — the validation loop only iterates over the action's defined arguments, so -prefixed arguments skip all type safety checks entirely; set as environment variables — via , with completely unvalidated values, and passed to the executed command; and included in the template context — available as in template rendering. Commit ebffd9f040f791208aee1db2e5a8aecd1e3e603d contains a patch.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Aug 21, 2026 · NIST NVD
Detected
OliveTin gives access to predefined shell commands from a web interface. The function in the executor is intended to discard any arguments not explicitly defined in the action's configuration. However, prior to commit ebffd9f040f791208aee1db2e5a8aecd1e3e603d, a special case allows any argument whose name starts with to bypass this filter. While two system arguments ( and ) are injected by OliveTin
Oct 14, 2026 · NIST NVD
Updated
OliveTin gives access to predefined shell commands from a web interface. The function in the executor is intended to discard any arguments not explicitly defined in the action's configuration. However, prior to commit ebffd9f040f791208aee1db2e5a8aecd1e3e603d, a special case allows any argument whose name starts with to bypass this filter. While two system arguments ( and ) are injected by OliveTin
Sources
- CVE.orgVulnerability recordCVE-2026-53541
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-53541
30-day exploitation probability 0.4%
first.org - NIST NVDVulnerability recordCVE-2026-53541
OliveTin gives access to predefined shell commands from a web interface. The function in the executor is intended to discard any arguments not explicitly defined in the action's configuration. However, prior to commit ebffd9f040f791208aee1db2e5a8aec
nvd.nist.gov