CVE-2026-78181
ractivejs ractive Keypath Ractive#set prototype pollution
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 24, 2026
- Updated
- Aug 26, 2026
- Reserved
- Aug 23, 2026
Description
A weakness has been identified in ractivejs ractive up to 1.4.4. Impacted is the function Ractive#set of the component Keypath Handler. Executing a manipulation can lead to improperly controlled modification of object prototype attributes. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
ractiveractivejs |
|
References
- VDB-394565 | ractivejs ractive Keypath Ractive#set prototype pollutionvdb-entrytechnical-description
- VDB-394565 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-78181 | CVE Analysis and Reportthird-party-advisory
- Submit #884187 | Ractive.js ractive 1.4.4 Prototype Pollutionthird-party-advisory
- https://github.com/ractivejs/ractive/issues/3448exploitissue-tracking
- https://github.com/ractivejs/ractive/product
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