What is the CVSS score of CVE-2025-50180?

CVE-2025-50180 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2025-50180?

Yes, a public proof-of-concept exploit is available for CVE-2025-50180. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-50180?

Within 24 hours: Identify all systems and applications using esm.sh version 136 and assess exposure. Within 7 days: Upgrade esm.sh to the patched version and validate the update across all environments. Within 30 days: Conduct a security audit of any systems that may have been exposed during the vulnerability window and review access logs for suspicious activity.

Esm.Sh CVE-2025-50180

HIGH

Server-Side Request Forgery (SSRF) (CWE-918)

2026-02-25 security-advisories@github.com

GHSA-3c9r-837r-qqm4

SSRF Esm.Sh Suse Esm Sh Esm

7.5

CVSS 3.1 · GitHub Advisory

View

Vulnerability Assessment

Weakness	CWE CWE-918 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V4 - API and Web Service URL allowlisting, SSRF prevention MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via remote/network. Public exploit/POC available.
Exploit ScenarioDerived	A remote attacker could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

esm.sh is a no-build content delivery network (CDN) for web development. In version 136, esm.sh is vulnerable to a full-response SSRF, allowing an attacker to retrieve information from internal websites through the vulnerability. [CVSS 7.5 HIGH]

RemediationAI

A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.

Affected Packages

go github.com/esm-dev/esm.sh fix: 0.0.0-20250616164159-0593516c4cfa

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in go

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-918 (Server-Side Request Forgery (SSRF)). Affects Esm.Sh. esm.sh is a no-build content delivery network (CDN) for web development. In version 136, esm.sh is vulnerable to a full-response SSRF, allowing an attacker to retrieve information from internal websites through the vulnerability. Version 137 fixes the vulnerability.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

GitHub Advisory PRIMARY 7.5 HIGH

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

SUSE HIGH

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

PoC Detected

Feb 27, 2026 - 17:44 vuln.today

Public exploit code

Patch released

Feb 27, 2026 - 17:44 nvd

Patch available

CVE Published

Feb 25, 2026 - 16:23 nvd

HIGH 7.5

DescriptionGitHub Advisory

Executive ViewAI

Why It Matters

Organizations using esm.sh version 136 face a critical Server-Side Request Forgery (SSRF) vulnerability that could allow attackers to access internal systems and sensitive data through the CDN service. This affects any web applications or build pipelines relying on this dependency, potentially exposing internal APIs, databases, and configuration systems to unauthorized access.

Business Impact: High

Compensating Controls

Apply vendor patch. If immediate patching is not possible, implement network segmentation to restrict outbound connections from systems using esm.sh, deploy WAF rules to block suspicious SSRF patterns, and disable esm.sh CDN functionality until patched.

Threat Intelligence Overview

EPSS Score

0.0%

Top 87% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS Vendor

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +38

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Server-Side Request Forgery HIGH

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

Affected Products (CPE)GitHub Advisory

cpe:2.3:a:esm:esm.sh:*:*:*:*:*:*:*:*

More in Esm.Sh

View all

CVE-2026-23644 HIGH This Week POC

7.5 Jan 18

Path traversal in esm.sh CDN prior to version 0.0.0-20260116051925-c62ab83c589e allows unauthenticated remote attackers

CVE-2026-27730 HIGH This Week POC

7.5 Feb 25

esm.sh versions up to 137 contain an SSRF vulnerability in the `/http(s)` fetch route that allows remote attackers to by

Same weakness CWE-918 – Server-Side Request Forgery (SSRF)

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8.8

CVE-2024-21893 HIGH POC

8.2

CVE-2021-40438 CRITICAL POC

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CVE-2021-22054 HIGH POC

7.5

CVE-2021-21975 HIGH POC

7.5

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CVE-2016-3718 MEDIUM POC

5.5

Vendor StatusVendor

SUSE

Severity: High

Product	Status
openSUSE Leap 15.6	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP5	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP6	Fixed
openSUSE Leap 15.5	Fixed

References

Advisories & patches

PATCH https://github.com/esm-dev/esm.sh/blob/f80ff8c8d58749e77fa964abde468fc61f8bd89e/internal/fetch/fetch.go#L13 PATCH https://github.com/esm-dev/esm.sh/blob/f80ff8c8d58749e77fa964abde468fc61f8bd89e/server/router.go#L511 PATCH https://github.com/esm-dev/esm.sh/commit/0593516c4cfab49ad3b4900416a8432ff2e23eb0 PATCH https://github.com/esm-dev/esm.sh/pull/1149 ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0757/ REF https://github.com/esm-dev/esm.sh/releases/tag/v137

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