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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-32700

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-32700
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 12:45 UTC · Revision 1

Source evidence

CVE-2021-32700

core-osv · Original source

Published 22 Jun 2021, 20:15 UTC

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.

osv:CVE-2021-32700
Complete source record
{
  "id": "fb469076346d5de0c554a7ecfa69d4ef0f9fcc0cecbe7394a751f2eae4a27b68",
  "url": "https://osv.dev/vulnerability/CVE-2021-32700",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-32700",
    "summary": "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.",
    "evidence": "osv:CVE-2021-32700",
    "products": [],
    "severity": "high",
    "structured": {
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      "aliases": [
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        "GHSA-f5qg-fqrw-v5ww"
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      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
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