01 Record
CVE-2026-16150
RobinHerbots Inputmask Internal Deep Merge Helper extend.js extendAliases prototype pollution
MediumPUBLISHEDCNA: VulDB
CNA base score5.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
02 Description
RobinHerbots Inputmask Internal Deep Merge Helper extend.js extendAliases prototype pollution
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.44% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 38.5% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-24.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-07-18 19:15Z3 MO AGO
- Last updated
- 2026-07-20 15:10Z3 MO AGO
- Reserved
- 2026-07-17
- Assigning CNA
- VulDB
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
- Weaknesses
- Data version
- 5.2
- Document digest
- 476565f0da48a1c9fab1f603ac130a53b9efee501c264308df0b6e9a5b6c16e5
05 Affected products
VendorProductVersionsPlatforms
06 References
- vuldb.comVDB-379909 | RobinHerbots Inputmask Internal Deep Merge Helper extend.js extendAliases prototype pollutionhttps://vuldb.com/vuln/379909
- vuldb.comVDB-379909 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/379909/cti
- vuldb.comCVE-2026-16150 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-16150
- vuldb.comSubmit #856979 | Node.js Inputmask 5.0.9 Prototype Pollutionhttps://vuldb.com/submit/856979
- github.comhttps://github.com/RobinHerbots/Inputmask/issues/2885
- github.comhttps://github.com/RobinHerbots/Inputmask/