CVE-2025-30218

unknown

Published 2025-04-02 · Modified 2025-10-13

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

Next.js may leak x-middleware-subrequest-id to external hosts

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
npm	next	`>=12.3.5,<12.3.6`	`12.3.6`
npm	next	`>=13.5.9,<13.5.10`	`13.5.10`
npm	next	`>=14.2.25,<14.2.26`	`14.2.26`
npm	next	`>=15.2.3,<15.2.4`	`15.2.4`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.