Detections
Analytics

SCA: security update for @fastify/accepts-serializer (GHSA-qxhc-wx3p-2wmg)

high Tenable Self-Hosted Container Security Plugin ID 441533

Description

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

 - @fastify/accepts-serializer cached serializer-selection results keyed by the request Accept header without
 a size limit or eviction policy. A remote unauthenticated client could send many distinct but matching
 Accept header variants to make the cache grow unbounded, eventually exhausting the Node.js heap and
 crashing the process. Versions <= 6.0.3 are affected. Update to 6.0.4 or later, which bounds the cache via
 an LRU with a default size of 100 entries, configurable through the new cacheSize plugin option.
 (CVE-2026-7768)

Solution

Update the @fastify/accepts-serializer library and its related packages to version 6.0.4 or later.

See Also

https://github.com/advisories/GHSA-qxhc-wx3p-2wmg

Plugin Details

Severity: High

ID: 441533

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 5/8/2026

Updated: 6/16/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

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:N/A:C

CVSS Score Source: CVE-2026-7768

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:N/A:H

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2026

Vulnerability Publication Date: 5/4/2026

Reference Information

CVE: CVE-2026-7768

cwe: CWE-770