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CVE-2021-32700

22
FAUCET Score

CVE-2021-32700 affects Ballerina versions 1.2.x and SwanLake alpha3, allowing a supply chain attack where unencrypted HTTP connections and ignored certificate checks enable a Man-in-the-Middle (MiTM) attacker to inject malicious code into Ballerina executables. This vulnerability carries a CVSS score of 7.4 (High), indicating a high potential for impact on confidentiality and integrity with high attack complexity, as it can be exploited remotely without user interaction. There is currently no evidence of active exploitation, public exploit code, or significant community discussion or media coverage surrounding this CVE. The issue has been patched in Ballerina 1.2.14 and SwanLake alpha4.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.14CPE matchmatch criteria
cpe:2.3:a:ballerina:ballerina:*:*:*:*:*:*:*:*
alpha1CPE matchmatch criteria
cpe:2.3:a:ballerina:swan_lake:alpha1:*:*:*:*:*:*:*
alpha2CPE matchmatch criteria
cpe:2.3:a:ballerina:swan_lake:alpha2:*:*:*:*:*:*:*
alpha3CPE matchmatch criteria
cpe:2.3:a:ballerina:swan_lake:alpha3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 16th percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / ballerina-platform/ballerina-lang/commit/4609ffee1744ecd16aac09303b1783bf0a525816
PatchThird Party Advisory
github.com / ballerina-platform/ballerina-lang/security/advisories/GHSA-f5qg-fqrw-v5ww
Third Party Advisory