CVE-2026-30303CRITICAL 9.8EPSS p68.5%

CVE-2026-30303CVE-2026-30303

Description

The command auto-approval module in Axon Code contains an OS Command Injection vulnerability, rendering its whitelist security mechanism ineffective. The vulnerability stems from the incorrect use of an incompatible command parser (the Unix-based shell-quote library) to analyze commands on the Windows platform, coupled with a failure to correctly handle Windows CMD-specific escape sequences (^). Attackers can exploit this discrepancy between the parsing logic and the execution environment by constructing payloads such as git log ^" & malicious_command ^". The Axon Code parser is deceived by the escape characters, misinterpreting the malicious command connector (&) as being within a protected string argument and thus auto-approving the command. However, the underlying Windows CMD interpreter ignores the escaped quotes, parsing and executing the subsequent malicious command directly. This allows attackers to achieve arbitrary Remote Code Execution (RCE) after bypassing what appears to be a legitimate Git whitelist check.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS1.38% probability of exploitation · percentile 68.5% · 2026-06-18T12:00:27Z
Published2026-03-27
Last modified2026-04-02

Underlying weaknesses· 1

CWE-78

References

  1. https://github.com/Secsys-FDU/LLM-Tool-Calling-CVEs/issues/6
  2. https://www.matterai.so/

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an OS Command ('OS Command Injection')cwe-780%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-30302
CVE
CVE-2026-30305
CVE
CVE-2026-30307
CVE
CVE-2026-30312
CVE
CVE-2026-30313
CVE
CVE-2026-30311
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.