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CVE-2023-40299

22
FAUCET Score

CVE-2023-40299 describes a critical vulnerability in Kong Insomnia 2023.4.0 on macOS, allowing attackers to execute arbitrary code, access restricted files, or trigger TCC permission requests. This local vulnerability, rated 7.8 HIGH, requires user interaction and leverages the DYLD_INSERT_LIBRARIES environment variable for exploitation, leading to high impacts on confidentiality, integrity, and availability. While the vulnerability is severe, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2023.4.0CPE matchmatch criteria
cpe:2.3:a:konghq:insomnia:2023.4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 26th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / Kong/insomnia/pull/6217/commits
Patch
github.com / Kong/insomnia/releases
Release Notes
insomnia.rest / changelog
Release Notes
angelystor.com / posts/cve-2023-40299
ExploitThird Party Advisory