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High 8.2Published May 28, 2026
CVE-2026-46509deepobj: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Updated under an hour ago ()
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It affects ranfdev deepobj. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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deepobj provides get, set, delete deep objects in javascript. Prior to 1.0.3, prototype pollution is possible when property paths contain __proto__/constructor/prototype. The property path must not be exposed as user input. This vulnerability is fixed in 1.0.3.
- CVSS
- 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
- Weakness (CWE)
- CWE-1321
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Jun 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ranfdev deepobj ranfdev:deepobj (from the name) | before 1.0.3 | CNA record |
References
- https://github.com/ranfdev/deepobj/security/advisories/GHSA-x7q7-fchv-8h2jx-refsource-confirm
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.