CVE-2026-23644
unknown
CVSS v3
—
CVSS v4 NEW
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VIR risk
—
Description
esm.sh has a path traversal in extractPackageTarball enables file writes from malicious packages
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/esm-dev/esm.sh | >=0.0.1,<=136 | |
| Go | github.com/esm-dev/esm.sh | <0.0.0-20260116051925-c62ab83c589e | 0.0.0-20260116051925-c62ab83c589e |
References
- https://github.com/esm-dev/esm.sh/security/advisories/GHSA-2657-3c98-63jq
- https://nvd.nist.gov/vuln/detail/CVE-2026-23644
- https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16
- https://github.com/esm-dev/esm.sh/commit/c62ab83c589e7b421a0e1376d2a00a4e48161093
- https://github.com/esm-dev/esm.sh
- https://pkg.go.dev/vuln/GO-2025-4138
- https://pkg.go.dev/vuln/GO-2026-4332
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.