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CVE-2025-65025

27
FAUCET Score

CVE-2025-65025 describes a critical path traversal vulnerability in the esm.sh CDN service, affecting versions prior to 136. An attacker can exploit this by crafting a malicious NPM package with specially formed file paths, allowing arbitrary file writes outside the intended extraction directory on the server. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 136CPE matchmatch criteria
cpe:2.3:a:esm:esm.sh:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 21st percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/esm-dev/esm.shFixed in: 0.0.0-20251117232647-9d77b88c3207

Vendor Advisories (1)

goGHSA-h3mw-4f23-gwpwhigh

esm.sh CDN service has arbitrary file write via tarslip

Nov 19, 2025

References

github.com / esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16
Patch
github.com / esm-dev/esm.sh/security/advisories/GHSA-h3mw-4f23-gwpw
ExploitVendor Advisory