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DoS via cache poisoning

High
ztanner published GHSA-67rr-84xm-4c7r Jul 3, 2025

Package

npm next (npm)

Affected versions

>15.0.4 and <15.2.0

Patched versions

≤15.0.4 and ≥15.2.0

Description

Summary

A vulnerability affecting Next.js has been addressed. It impacted versions >=15.1.0 <15.1.8 and involved a cache poisoning bug leading to a Denial of Service (DoS) condition.

More details: CVE-2025-49826

Credits

  • Allam Rachid zhero;
  • Allam Yasser (inzo)

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE ID

CVE-2025-49826

Weaknesses

No CWEs

Credits