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Vulnerabilities

Vulnerability · CVE-2026-53541

OliveTin gives access to predefined shell commands from a web interface.

Published Aug 21, 2026 · catalog updated Oct 14, 2026 · OliveTin gives access to

Check if you run it

No confirmed exploitation is on record for CVE-2026-53541. EPSS is 0.38%. Act only if a listed version of OliveTin gives access to is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (OliveTin gives access to).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.38%
Remediation
Advisory link
Affected products
See sources for product scope

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.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-53541

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-53541. EPSS is 0.38%. Act only if a listed version of OliveTin gives access to is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-20: Improper Input Validation. EPSS 0.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. 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

  2. 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

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.