RobinHerbots Inputmask Internal Deep Merge Helper extend.js extendAliases prototype pollution
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
A vulnerability was found in RobinHerbots Inputmask up to 5.0.9. Affected by this issue is the function extendDefaults/extendDefinitions/extendAliases in the library lib/dependencyLibs/extend.js of the component Internal Deep Merge Helper. The manipulation results in improperly controlled modification of object prototype attributes. The attack may be performed from remote. The project was informed of the problem early through an issue report but has not responded yet.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| RobinHerbots | Inputmask | 5.0.0; 5.0.1; 5.0.2; 5.0.3; 5.0.4; 5.0.5; 5.0.6; 5.0.7; 5.0.8; 5.0.9 | — | No fix listed | CNA |
- Inputmask VendorRobinHerbots Affected 5.0.0; 5.0.1; 5.0.2; 5.0.3; 5.0.4; 5.0.5; 5.0.6; 5.0.7; 5.0.8; 5.0.9 Fixed in — No fix listed CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:robinherbots:inputmask:*:*:*:*:*:*:*:* | — | — | RobinHerbots |
- cpe:2.3:a:robinherbots:inputmask:*:*:*:*:*:*:*:* Versions — — ·RobinHerbots
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16150
- 2026-10-03 Alias added: GHSA-f93p-5vr9-j8vq
References
Sources
- CVE-2026-16150 · CVE Program
- CVE-2026-16150 · NVD
- FIRST EPSS
- GHSA-f93p-5vr9-j8vq · GitHub Advisory Database · CC BY 4.0
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