Detections
Analytics

SCA: security update for fastify (GHSA-247c-9743-5963)

high Tenable Cloud Security Plugin ID 440446

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Impact: Fastify applications using schema.body.content for per-content-type body validation can have
 validation bypassed entirely by prepending a space to the Content-Type header. The body is still parsed
 correctly but schema validation is skipped. This is a regression introduced in fastify >= 5.3.2 by the fix
 for CVE-2025-32442 Patches: Upgrade to fastify v5.8.5 or later. Workarounds: None. Upgrade to the patched
 version. (CVE-2026-33806)

Solution

Update the fastify library and its related packages to version 5.8.5 or later.

See Also

https://github.com/advisories/GHSA-247c-9743-5963

Plugin Details

Severity: High

ID: 440446

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 4/16/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N

CVSS Score Source: CVE-2026-33806

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/15/2026

Vulnerability Publication Date: 4/15/2026

Reference Information

CVE: CVE-2026-33806