CVE-2021-32700

Supply chain attack via MiTM against users

HIGH
7.4
CVSS Score
Published: June 22, 2021 at 07:30 PM UTC
Updated: June 17, 2026 at 03:53 AM UTC
3 products affected across 2 vendorsSwan LakeBallerinaBallerina

Using ballerina-lang by ballerina-platform?

Get instant alerts when new vulnerabilities affect ballerina-lang - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.4
Exploit prediction
EPSS 0.6%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.2.14
Affected range stops below 1.2.14, so it looks safe — our inference, not a vendor statement
v < 1.2.14v < SL-alpha4
Affected range stops below 1.2.14, so it looks safe — our inference, not a vendor statement
Affected range stops below SL-alpha4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card