Incorrect Authorization Affecting keep package, versions <0.51.0-r7


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.62% (47th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-KEEP-16698195
  • published15 May 2026
  • disclosed13 May 2026

Introduced: 13 May 2026

CVE-2026-44573  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Chainguard keep to version 0.51.0-r7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keep package and not the keep package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Next.js is a React framework for building full-stack web applications. From 12.2.0 to before 15.5.16 and 16.2.5, Applications using the Pages Router with i18n configured and middleware/proxy-based authorization can allow unauthorized access to protected page data through locale-less /_next/data/<buildId>/<page>.json requests. In affected configurations, middleware does not run for the unprefixed data route, allowing an attacker to retrieve SSR JSON for protected pages without passing the intended authorization checks. This vulnerability is fixed in 15.5.16 and 16.2.5.

CVSS Base Scores

version 3.1