What is CVE-2026-5752?

CVE-2026-5752 is a critical-severity vulnerability in Cohere Cohere-Terrarium, classified under CWE-94 IMPROPER CONTROL OF GENERATION OF CODE ('CODE INJECTION'). CVSS score: 9.3/10. Published 2026-04-14.

How severe is CVE-2026-5752?

Critical severity. CVSS v3 base score is 9.3 out of 10.

Vulnerability in Cohere Cohere-Terrarium

CVE-2026-5752

Sandbox Escape Vulnerability in Terrarium allows arbitrary code execution with root privileges on a host process via JavaScript prototype chain traversal.

EPSS: 0.002 (11.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Cohere Cohere-terrarium — versions 1.0.1

References

cret@cert.org
cret@cert.org
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-5752?: CVE-2026-5752 is a critical-severity vulnerability in Cohere Cohere-Terrarium, classified under CWE-94 IMPROPER CONTROL OF GENERATION OF CODE ('CODE INJECTION'). CVSS score: 9.3/10. Published 2026-04-14.
How severe is CVE-2026-5752?: Critical severity. CVSS v3 base score is 9.3 out of 10.