Prototype pollution in rangy
Priority HIGH 75CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
All versions of the package rangy are vulnerable to Prototype Pollution when using the extend() function in file rangy-core.js.The function uses recursive merge which can lead an attacker to modify properties of the Object.prototype
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00766 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| — | rangy | all versions | — | No fix listed | CNA |
| — | rangy (npm) | up to 1.3.1 | — | No fix listed | GHSA-65rp-mhqf-8gj3 |
- rangy Vendor— Affected all versions Fixed in — No fix listed CNA
- rangy (npm) Vendor— Affected up to 1.3.1 Fixed in — No fix listed GHSA-65rp-mhqf-8gj3
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rangy_project:rangy:-:*:*:*:*:node.js:*:* | not specified by NVD | Vulnerable | Rangy Project |
- cpe:2.3:a:rangy_project:rangy:-:*:*:*:*:node.js:*:* Versions not specified by NVD Vulnerable ·Rangy Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26102
- 2026-10-03 Alias added: GHSA-65rp-mhqf-8gj3
References
Sources
- CVE-2023-26102 · CVE Program
- CVE-2023-26102 · NVD
- FIRST EPSS
- GHSA-65rp-mhqf-8gj3 · GitHub Advisory Database · CC BY 4.0
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