HIGH
CVE-2023-40299
NVD-CWE-noinfoPublished: October 4, 2023· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2023-40299 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (8)
→
https://github.com/Kong/insomnia/releasesRelease Notes
→
https://insomnia.rest/changelogRelease Notes
→
https://www.angelystor.com/posts/cve-2023-40299/Exploit · Third Party Advisory
→
https://github.com/Kong/insomnia/releasesRelease Notes
→
https://insomnia.rest/changelogRelease Notes
→
https://www.angelystor.com/posts/cve-2023-40299/Exploit · Third Party Advisory
Quick Facts
CVE IDCVE-2023-40299
CVSS Score7.8 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected2 vendor(s)
PublishedOct 4, 2023
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-40299 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.