CVE-2026-27952 is a critical Python sandbox escape vulnerability affecting Agenta-API versions prior to 0.48.1. The flaw allowed authenticated users to bypass the RestrictedPython sandbox in Agenta's custom code evaluator by exploiting an incorrectly whitelisted numpy package, specifically through numpy.ma.core.inspect. This vulnerability carries a CVSS score of 9.9 (CRITICAL) due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability, enabling arbitrary code execution on the API server. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion, with three mentions.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.48.1CPE matchmatch criteria | cpe:2.3:a:agentatech:agenta:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 1.0 Bluesky, 0.5 Mastodon, and 1.6 GitHub 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.