Kong Insomnia 2023.4.0 on macOS allows attackers to execute code and access restricted files, or make requests for TCC permissions, by using the DYLD_INSERT_LIBRARIES environment variable.
Conclusion & alert: CVE-2023-40299 is rated Exploit Available (50.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.04%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-21 | 0.06% | 0.04% | -0.02% |
| 2 | 2025-11-18 | 0.04% | 0.06% | +0.02% |
| 3 | 2025-04-15 | — | 0.04% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| URL | Tags |
|---|---|
| https://github.com/Kong/insomnia/pull/6217/commits | Patch |
| https://github.com/Kong/insomnia/releases | Release Notes |
| https://insomnia.rest/changelog | Release Notes |
| https://www.angelystor.com/posts/cve-2023-40299/ | Exploit Third Party Advisory |