What is the CVSS score of CVE-2025-70948?

CVE-2025-70948 has a CVSS 3.1 base score of 9.3 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2025-70948?

Within 24 hours: Identify all systems running @perfood/couch-auth v0.26.0 and isolate affected services from production if feasible; disable password reset functionality if operationally possible. Within 7 days: Implement WAF rules to detect/block host header injection patterns; enforce strict host header validation at application layer; deploy network segmentation to restrict mailer component access. Within 30 days: Upgrade to patched version when available; conduct forensic audit for evidence of exploitation; force password reset for all users; consider alternative authentication library if patch remains unavailable.

CVE-2025-70948

CRITICAL

Improper Neutralization of HTTP Headers for Scripting Syntax (CWE-644)

2026-03-05 cve@mitre.org

GHSA-qw8v-34ww-6q9p

Code Injection

9.3

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-644 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization HTTP header neutralization
Impact	CVSS 9.3.
Exploit ScenarioDerived	Steal reset tokens via Host header.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Host header injection in @perfood/couch-auth v0.26.0 for password reset token theft.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:06 CVSS 9.3

Host header injection in couch-auth.

RemediationAI

Update.

Affected Packages

npm @perfood/couch-auth no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

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

Technical ContextAI · show details

CWE-644.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.3 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

DescriptionCVE.org

A host header injection vulnerability in the mailer component of @perfood/couch-auth v0.26.0 allows attackers to obtain reset tokens and execute an account takeover via spoofing the HTTP Host header.

Executive ViewAI

Why It Matters

A critical vulnerability in the @perfood/couch-auth mailer component (v0.26.0) allows attackers to hijack user accounts by intercepting password reset tokens through HTTP header spoofing. Any organization using this library is at immediate risk of unauthorized account access and potential data breach, with no vendor patch currently available.

Business Impact: Severe

Compensating Controls

Implement Web Application Firewall (WAF) rules to validate and whitelist legitimate Host headers; add application-level host header validation rejecting mismatched values; restrict mailer component network access via firewall/segmentation; disable password reset feature until patch available; monitor authentication logs for anomalous reset token requests; implement rate limiting on password reset endpoints; require email verification via separate secure channel before token delivery.

Threat Intelligence Overview

EPSS Score

0.0%

Top 91% exploitable

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

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 CRITICAL

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

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

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +46

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.