What is the CVSS score of CVE-2026-27980?

CVE-2026-27980 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:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Red Hat are affected by CVE-2026-27980?

CVE-2026-27980 presents notable security risk, a resource exhaustion vulnerability rated CVSS 7.5.. A patch is available.

Is there a public PoC exploit available for CVE-2026-27980?

Yes, a public proof-of-concept exploit is available for CVE-2026-27980. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-27980?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.

Red Hat CVE-2026-27980

HIGH

Uncontrolled Resource Consumption (CWE-400)

2026-03-17 https://github.com/vercel/next.js

GHSA-3x4c-7xq6-9pq8

Denial Of Service Red Hat

7.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.5 HIGH

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

Red Hat

5.3 MEDIUM

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

PoC Detected

Mar 18, 2026 - 19:52 vuln.today

Public exploit code

Analysis Generated

Mar 17, 2026 - 20:30 vuln.today

Patch released

Mar 17, 2026 - 20:30 nvd

Patch available

CVE Published

Mar 17, 2026 - 16:17 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

10 npm packages depend on next (9 direct, 1 indirect)

Ecosystem-wide dependent count for version 16.0.0-beta.0.

DescriptionGitHub Advisory

Summary

The default Next.js image optimization disk cache (/_next/image) did not have a configurable upper bound, allowing unbounded cache growth.

Impact

An attacker could generate many unique image-optimization variants and exhaust disk space, causing denial of service.

Patches

Fixed by adding an LRU-backed disk cache with images.maximumDiskCacheSize, including eviction of least-recently-used entries when the limit is exceeded. Setting maximumDiskCacheSize: 0 disables disk caching.

Workarounds

If upgrade is not immediately possible:

Periodically clean .next/cache/images.
Reduce variant cardinality (e.g., tighten values for images.localPatterns, images.remotePatterns, and images.qualities)

AnalysisAI

Next.js image optimization caches unbounded disk space by default, enabling attackers to exhaust storage and cause denial of service by requesting numerous image variants. The vulnerability affects applications using the default /_next/image optimization feature without explicit cache size limits. A patch is available that introduces configurable cache size limits with LRU eviction.

Technical ContextAI

A denial of service vulnerability allows an attacker to disrupt the normal functioning of a system, making it unavailable to legitimate users. This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400).

RemediationAI

A vendor patch is available — apply it immediately. Implement rate limiting and input validation. Use timeout mechanisms for resource-intensive operations. Deploy DDoS protection where applicable.