CVE-2021-32700: Ballerina

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Ballerina is an open source programming language and platform for cloud application programmers. Ballerina versions 1.2.x and SL releases up to alpha 3 have a potential for a supply chain attack via MiTM against users. Http connections did not make use of TLS and certificate checking was ignored. The vulnerability allows an attacker to substitute or modify packages retrieved from BC thus allowing to inject malicious code into ballerina executables. This has been patched in Ballerina 1.2.14 and Ballerina SwanLake alpha4.

Affected products

• Ballerina Ballerina: before 1.2.14 (fixed in 1.2.14)
• Ballerina Swan Lake: version alpha1 only; version alpha2 only; version alpha3 only

Published 2021-06-22. Last modified 2026-06-17.