CVE-2026-27120
Feb. 20, 2026, 10:16 p.m.
6.1
Medium
Description
Leafkit is a templating language with Swift-inspired syntax. Prior to 1.4.1, htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character and some additional characters. In the case of html attributes, this can lead to XSS if there is a leaf variable in the attribute that is user controlled. This vulnerability is fixed in 1.4.1.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Leafkit |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-75
Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
The product does not adequately filter user-controlled input for special elements with control implications.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | leafkit | leaf-kit | <1.4.1 | / | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: NETWORK
- Attack Complexity: LOW
- Privileges Required: NONE
- Scope: CHANGED
- Confidentiality Impact: LOW
- Integrity Impact: LOW
- Availability Impact: NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Timeline
Published: Feb. 20, 2026, 10:16 p.m.
Last Modified: Feb. 20, 2026, 10:16 p.m.
Last Modified: Feb. 20, 2026, 10:16 p.m.
Status : Received
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.