CVE-2026-27730
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
esm.sh has SSRF localhost/private-network bypass in `/http(s)` module route in github.com/esm-dev/esm.sh
Predictions
Exploit likelihood
30%
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 | <0.0.0-20250616164159-0593516c4cfa | 0.0.0-20250616164159-0593516c4cfa |
References
- https://github.com/esm-dev/esm.sh/security/advisories/GHSA-p2v6-84h2-5x4r
- https://nvd.nist.gov/vuln/detail/CVE-2026-27730
- https://github.com/esm-dev/esm.sh/pull/1149
- https://github.com/esm-dev/esm.sh/commit/0593516c4cfab49ad3b4900416a8432ff2e23eb0
- https://github.com/esm-dev/esm.sh
- https://github.com/esm-dev/esm.sh/releases/tag/v137
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.