VulnerabilityModified
CVE-2019-10750
deeply is vulnerable to Prototype Pollution in versions before 3.1.0.
CRITICAL 9.8EPSS 1.69%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
deeply is vulnerable to Prototype Pollution in versions before 3.1.0. The function assign-deep could be tricked into adding or modifying properties of Object.prototype using using a _proto_ payload.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.69% probability · 77th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- deeply project/deeply
- Source
- report@snyk.io
EPSS 1.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://snyk.io/vuln/SNYK-JS-DEEPLY-451026Exploit, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-DEEPLY-451026Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.