VDB
CVE-2026-27730
CVE-2026-27730
PUBLISHED
CVSS 8.600000381469727 HIGH
esm.sh has SSRF localhost/private-network bypass in `/http(s)` module route
EPSS 0.06% · 20.1th percentile
Risk Scores
CVSS v3.0
8.600000381469727
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS Score
0.06%
20.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| github.com | esm-dev/esm.sh | 0, 0, 0 |
| esm | esm.sh | 0, 0, 0 |
| esm-dev | esm.sh | <= 137, *, <= 137 |
Timeline
- Feb 25, 2026 CVE Published
- Feb 25, 2026 PoC Published
- Feb 25, 2026 PoC Published
- Feb 26, 2026 EPSS Score
- Feb 26, 2026 PoC Published
- Feb 27, 2026 EPSS Score
- Feb 28, 2026 PoC Published
- Mar 1, 2026 EPSS Score
- Mar 2, 2026 CVE Updated
- Mar 2, 2026 EPSS Score
- Mar 4, 2026 EPSS Score
- Mar 5, 2026 EPSS Score
References
- https://github.com/esm-dev/esm.sh/security/advisories/GHSA-p2v6-84h2-5x4r url
- https://nvd.nist.gov/vuln/detail/CVE-2026-27730 advisory
- https://github.com/esm-dev/esm.sh/pull/1149 url
- https://github.com/esm-dev/esm.sh/commit/0593516c4cfab49ad3b4900416a8432ff2e23eb0 url
- https://github.com/esm-dev/esm.sh package
- https://github.com/esm-dev/esm.sh/releases/tag/v137 url