CVE-2021-23429

MEDIUMNVD 6.56.5—

6.5

All versions of package transpile are vulnerable to Denial of Service (DoS) due to a lack of input sanitization or whitelisting, coupled with improper exception handling in the .to() function.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 51.9%
KEV: Not listed

Published

August 24, 2021

Last Modified

November 21, 2024

References (4)

report@snykhttps://github.com/stealjs/transpile/blob/56aaeb26f69496e45a60c03dc92653d53021d4ac/main.js%23L53
report@snykhttps://snyk.io/vuln/SNYK-JS-TRANSPILE-1290774
af854a3a-2127-422b-91ae-364da2661108https://github.com/stealjs/transpile/blob/56aaeb26f69496e45a60c03dc92653d53021d4ac/main.js%23L53
af854a3a-2127-422b-91ae-364da2661108https://snyk.io/vuln/SNYK-JS-TRANSPILE-1290774

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
npm	transpile	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

npm(1)

Package	Vulnerable range	Fixed in	Dependents
transpile	—	—	—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 11:39 UTCEG score recompute
2026-05-26 11:39 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:49 UTCepss_batch

Frequently asked(5)

What is CVE-2021-23429?

CVE-2021-23429 is a medium vulnerability published on August 24, 2021. All versions of package transpile are vulnerable to Denial of Service (DoS) due to a lack of input sanitization or whitelisting, coupled with improper exception handling in the .to() function.

When was CVE-2021-23429 disclosed?

CVE-2021-23429 was first published in the National Vulnerability Database on August 24, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-23429 actively exploited?

CVE-2021-23429 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 51.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-23429?

CVE-2021-23429 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2021-23429?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-23429, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-23429

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Is Your Infrastructure Affected by CVE-2021-23429?

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