SCA: security update for unleash-server (GHSA-r5pq-6chh-j3xp)

high Tenable Self-Hosted Container Security Plugin ID 446222

Description

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

- Unleash is an open-source feature management platform. Prior to 7.5.2, 7.6.5, and 8.0.2, the shared
OpenAPI validation error path in src/lib/error/bad-data-error.ts passes a raw request value from
lodash.get to JSON.stringify in genericErrorMessage and fromOpenApiValidationErrors without guarding stack
exhaustion. An unauthenticated attacker can send a roughly 10 KB JSON value nested thousands of levels
deep to POST /edge/validate, POST /edge/issue-token, or another OpenAPI-validated endpoint, causing
RangeError: Maximum call stack size exceeded in openAPIValidationMiddleware and terminating the Node
process because no uncaughtException handler recovers it. Replaying the request can sustain a complete
service outage. This issue is fixed in versions 7.5.2, 7.6.5, and 8.0.2. (CVE-2026-63462)

Solution

Update the unleash-server library and its related packages to version 7.5.2 or later.

See Also

https://github.com/advisories/GHSA-r5pq-6chh-j3xp

Plugin Details

Severity: High

ID: 446222

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/22/2026

Updated: 8/22/2026

Risk Information

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-2026-63462

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: 8/21/2026

Vulnerability Publication Date: 8/21/2026

Reference Information

CVE: CVE-2026-63462

cwe: CWE-674