CVE-2024-57177Network attack vector

Limited command execution via Host header template injection

Published Feb 10, 2025 · Updated Dec 17, 2025

Server-side template injection in @perfood/couch-auth 0.21.2 and earlier allows remote attackers to run limited server commands. The email-change confirmation flow inserts the unvalidated HTTP Host header into a Nunjucks-rendered confirmation link, allowing template syntax to be evaluated. CISA assesses no privileges or user interaction, while exploitation also requires the deployment to generate email-change confirmations from request-derived host data and can disclose server-side information.

CVSS severity7.3
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in @perfood/couch-auth 0.21.2 and earlier allows remote attackers to run limited server commands. The email-change confirmation flow inserts the unvalidated HTTP Host header into a Nunjucks-rendered confirmation link, allowing template syntax to be evaluated. CISA assesses no privileges or user interaction, while exploitation also requires the deployment to generate email-change confirmations from request-derived host data and can disclose server-side information.

The record

CVE
CVE-2024-57177
Published
Feb 10, 2025
Updated
Dec 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1336, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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