02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: snykyargs-parser could be tricked into adding or modifying properties of Object.prototype using a "__proto__" payload.
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.51% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 41.8% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
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.
SCHEMA: 5.1
- Published
- 2020-03-16 19:49Z6 YR AGO
- Last updated
- 2024-08-04 09:33Z2 YR AGO
- Reserved
- 2020-01-21
- Assigning CNA
- snyk
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant
- CWE-267Privilege Defined With Unsafe ActionsBase
- Data version
- 5.1
- Document digest
- 12fc21b1d7ce3036aaa51ccebd7e2134f2c73b067b5b6bd6a1e050f5dced54fa
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
n/ayargs-parserAll versions prior to version 18.1.1 and patches at 13.1.2 and 15.0.1—