Vulnerability Description
neoan3-apps/template is a neoan3 minimal template engine. Versions prior to 1.1.1 have allowed for passing in closures directly into the template engine. As a result values that are callable are executed by the template engine. The issue arises if a value has the same name as a method or function in scope and can therefore be executed either by mistake or maliciously. In theory all users of the package are affected as long as they either deal with direct user input or database values. A multi-step attack on is therefore plausible. Version 1.1.1 has addressed this vulnerability. Unfortunately only working with hardcoded values is safe in prior versions. As this likely defeats the purpose of a template engine, please upgrade.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Neoan | Neoan3-Template | < 1.1.1 |
Related Weaknesses (CWE)
References
- https://github.com/sroehrl/neoan3-template/commit/4a2c9570f071d3c8f4ac790007599cPatchThird Party Advisory
- https://github.com/sroehrl/neoan3-template/issues/8Issue TrackingPatchThird Party Advisory
- https://github.com/sroehrl/neoan3-template/security/advisories/GHSA-3v56-q6r6-4gPatchThird Party Advisory
- https://github.com/sroehrl/neoan3-template/commit/4a2c9570f071d3c8f4ac790007599cPatchThird Party Advisory
- https://github.com/sroehrl/neoan3-template/issues/8Issue TrackingPatchThird Party Advisory
- https://github.com/sroehrl/neoan3-template/security/advisories/GHSA-3v56-q6r6-4gPatchThird Party Advisory
FAQ
What is CVE-2021-41170?
CVE-2021-41170 is a vulnerability with a CVSS score of 9.8 (CRITICAL). neoan3-apps/template is a neoan3 minimal template engine. Versions prior to 1.1.1 have allowed for passing in closures directly into the template engine. As a result values that are callable are execu...
How severe is CVE-2021-41170?
CVE-2021-41170 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-41170?
Check the references section above for vendor advisories and patch information. Affected products include: Neoan Neoan3-Template.