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fastify vulnerable to request validation bypass via skipped boolean false schemas

Collected exploitation and prediction evidence

Risk source coverage

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

Dated risk observations

Risk history is separate from CNA/OSV content history. Daily score drift is retained but only an upward crossing of 10% triggers the prediction change event.

Immutable source observations

11 recorded revisions

Each citation identifies one complete source statement. Source modification dates and the time this installation observed them are distinct. Latest history includes records historically associated by source identifiers; a removed alias is not a current equivalence claim. Exact citations show that source record's own earlier observations. Failed reads and unchanged polls do not rewrite history.

11 Nov 2026 17:01:27 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

euvd · EUVD-2026-70989 · Published

9 Nov 2026 16:06:13 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

euvd · EUVD-2026-70989 · Published

7 Nov 2026 15:22:19 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

euvd · EUVD-2026-70989 · Published

5 Nov 2026 14:38:09 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

euvd · EUVD-2026-70989 · Published

3 Nov 2026 14:00:45 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

euvd · EUVD-2026-70989 · Published

1 Nov 2026 13:00:55 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

euvd · EUVD-2026-70989 · Published

30 Oct 2026 12:50:45 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

euvd · EUVD-2026-70989 · Published

28 Oct 2026 10:33:35 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

euvd · EUVD-2026-70989 · Published

25 Oct 2026 16:19:16 UTC

fastify versions before 5.12.2 decide whether to compile a request schema based on JavaScript truthiness, but JSON Schema Draft 7 defines the boolean false as a valid schema that rejects every instance. When an application assigns false to …

nvd · CVE-2026-84469 · Published

24 Oct 2026 13:17:17 UTC

fastify vulnerable to request validation bypass via skipped boolean false schemas

osv · GHSA-hwr6-493r-vm6h · Published

23 Oct 2026 15:48:27 UTC

fastify vulnerable to request validation bypass via skipped boolean false schemas

cve-program · CVE-2026-84469 · Published

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 02:22 UTC · 274 of 275 readable · 272 fully read · documentation 468/469 current