# Starcounter-Jack vulnerabilities

Source: https://junglewise.ai/threats/vendors/starcounter-jack  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/starcounter-jack.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 1 vulnerability in Starcounter-Jack: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2021-4279, was published on 25 December 2022. 1 technology has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 1 (0 critical, 0 exploited in the wild)

## About Starcounter-Jack

GitHub user or organization that publishes software packages.

## Latest Starcounter-Jack vulnerabilities

- [CVE-2021-4279: Starcounter-Jack JSON-Patch prototype pollution](https://junglewise.ai/threats/cve-2021-4279-starcounter-jack-json-patch-prototype-pollution) (low, CVSS 3.1, published 25 Dec 2022)

## Most severe Starcounter-Jack vulnerabilities

- [CVE-2021-4279: Starcounter-Jack JSON-Patch prototype pollution](https://junglewise.ai/threats/cve-2021-4279-starcounter-jack-json-patch-prototype-pollution) (low, CVSS 3.1, published 25 Dec 2022)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Starcounter-Jack technologies

- [Starcounter-Jack JSON-Patch](https://junglewise.ai/threats/technologies/json-patch): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Starcounter-Jack vulnerabilities", https://junglewise.ai/threats/vendors/starcounter-jack, 9 November 2026.