Is CVE-2023-26135 actively exploited?

No active exploitation of CVE-2023-26135 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-26135 be exploited remotely?

Yes. CVE-2023-26135 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-26135?

CVE-2023-26135 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-26135

CRITICAL

CVE-2023-26135

CWE-1321Published: June 30, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

All versions of the package flatnest are vulnerable to Prototype Pollution via the nest() function in the flatnest/nest.js file.

NVD Source

Risk Analysis

The flatnest package is vulnerable to prototype pollution via the nest() function. This critical flaw can lead to remote code execution or denial of service if an attacker can influence the object structure.

No public exploit is known, and it is not in the CISA KEV. It is remotely exploitable.

Recommended Action

Update the flatnest package to a patched version or replace the dependency.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-26135 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.