CVE-2026-6621
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Summary
A vulnerability was determined in 1024bit extend-deep up to 0.1.6. The impacted element is an unknown function of the file index.js. This manipulation of the argument proto causes improperly controlled modification of object prototype attributes. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The code repository of the project has not been active for many years.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 1024bit | extend-deep | 0.1.0 | affected |
| 1024bit | extend-deep | 0.1.1 | affected |
| 1024bit | extend-deep | 0.1.2 | affected |
| 1024bit | extend-deep | 0.1.3 | affected |
| 1024bit | extend-deep | 0.1.4 | affected |
| 1024bit | extend-deep | 0.1.5 | affected |
| 1024bit | extend-deep | 0.1.6 | affected |
Weaknesses
- CWE-1321: Improperly Controlled Modification of Object Prototype Attributes
- CWE-94: Code Injection
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
References
- https://vuldb.com/vuln/358256
- https://vuldb.com/vuln/358256/cti
- https://vuldb.com/submit/792387
- https://github.com/sudo-secure/security-research/blob/main/extend-deep/prototype-pollution/PoC.md
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