# Openc3 Cosmos vulnerabilities

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

Junglewise Threat Intelligence has tracked 10 vulnerabilities in Openc3 Cosmos: 0 in the last 7 days and 3 in the last 90 days, 3 of them critical and 0 exploited in the wild. The most recent, CVE-2026-77602, was published on 23 September 2026. Nothing in the last four weeks, down from 3 vulnerabilities in the four before. 0 critical against 1.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 3
- All time: 10 (3 critical, 0 exploited in the wild)

## About Openc3 Cosmos

Open source framework for command and control of systems.

## Latest Openc3 Cosmos vulnerabilities

- [CVE-2026-77602: OpenC3 COSMOS authenticated remote code execution via config overlay](https://junglewise.ai/threats/cve-2026-77602-openc3-cosmos-authenticated-remote-code-execution-via-config) (critical, CVSS 9.9, published 23 Sep 2026)
- [CVE-2026-77601: OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems…](https://junglewise.ai/threats/cve-2026-77601-openc3-cosmos-authenticated-os-command-injection-via-pypi-url) (high, CVSS 8.8, published 23 Sep 2026)
- [CVE-2026-77394: OpenC3 COSMOS stored cross-user XSS in BUTTON widget](https://junglewise.ai/threats/cve-2026-77394-openc3-cosmos-stored-cross-user-xss-in-button-widget) (high, CVSS 7.6, published 23 Sep 2026)
- [CVE-2026-42088: OpenC3 COSMOS privilege escalation via Script Runner API bypass](https://junglewise.ai/threats/cve-2026-42088-openc3-cosmos-privilege-escalation-via-script-runner-api-bypass) (critical, CVSS 9.6, published 4 May 2026)
- [CVE-2026-42087: OpenC3 COSMOS SQL injection in QuestDB Time-Series Database](https://junglewise.ai/threats/cve-2026-42087-openc3-cosmos-sql-injection-in-questdb-time-series-database) (critical, CVSS 9.6, published 4 May 2026)
- [CVE-2026-42086: OpenC3 COSMOS Self-XSS in Command Sender](https://junglewise.ai/threats/cve-2026-42086-openc3-cosmos-self-xss-in-command-sender) (medium, CVSS 4.6, published 4 May 2026)
- [CVE-2026-42085: OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems…](https://junglewise.ai/threats/cve-2026-42085-openc3-cosmos-path-traversal-in-save-tool-config) (medium, CVSS 4.3, published 4 May 2026)
- [CVE-2026-42084: OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems…](https://junglewise.ai/threats/cve-2026-42084-openc3-cosmos-unverified-password-change-via-session-token) (high, CVSS 8.1, published 4 May 2026)
- [CVE-2024-47529: OpenC3 COSMOS cleartext password storage in browser localStorage](https://junglewise.ai/threats/cve-2024-47529-openc3-cosmos-cleartext-password-storage-in-browser-localstorage) (low, CVSS 3.1, published 2 Oct 2024)
- [CVE-2024-43795: OpenC3 COSMOS cross-site scripting in login](https://junglewise.ai/threats/cve-2024-43795-openc3-cosmos-cross-site-scripting-in-login) (low, CVSS 3.1, published 2 Oct 2024)

## Most severe Openc3 Cosmos vulnerabilities

- [CVE-2026-77602: OpenC3 COSMOS authenticated remote code execution via config overlay](https://junglewise.ai/threats/cve-2026-77602-openc3-cosmos-authenticated-remote-code-execution-via-config) (critical, CVSS 9.9, published 23 Sep 2026)
- [CVE-2026-42088: OpenC3 COSMOS privilege escalation via Script Runner API bypass](https://junglewise.ai/threats/cve-2026-42088-openc3-cosmos-privilege-escalation-via-script-runner-api-bypass) (critical, CVSS 9.6, published 4 May 2026)
- [CVE-2026-42087: OpenC3 COSMOS SQL injection in QuestDB Time-Series Database](https://junglewise.ai/threats/cve-2026-42087-openc3-cosmos-sql-injection-in-questdb-time-series-database) (critical, CVSS 9.6, published 4 May 2026)
- [CVE-2026-77601: OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems…](https://junglewise.ai/threats/cve-2026-77601-openc3-cosmos-authenticated-os-command-injection-via-pypi-url) (high, CVSS 8.8, published 23 Sep 2026)
- [CVE-2026-42084: OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems…](https://junglewise.ai/threats/cve-2026-42084-openc3-cosmos-unverified-password-change-via-session-token) (high, CVSS 8.1, published 4 May 2026)
- [CVE-2026-77394: OpenC3 COSMOS stored cross-user XSS in BUTTON widget](https://junglewise.ai/threats/cve-2026-77394-openc3-cosmos-stored-cross-user-xss-in-button-widget) (high, CVSS 7.6, published 23 Sep 2026)
- [CVE-2026-42086: OpenC3 COSMOS Self-XSS in Command Sender](https://junglewise.ai/threats/cve-2026-42086-openc3-cosmos-self-xss-in-command-sender) (medium, CVSS 4.6, published 4 May 2026)
- [CVE-2026-42085: OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems…](https://junglewise.ai/threats/cve-2026-42085-openc3-cosmos-path-traversal-in-save-tool-config) (medium, CVSS 4.3, published 4 May 2026)
- [CVE-2024-43795: OpenC3 COSMOS cross-site scripting in login](https://junglewise.ai/threats/cve-2024-43795-openc3-cosmos-cross-site-scripting-in-login) (low, CVSS 3.1, published 2 Oct 2024)
- [CVE-2024-47529: OpenC3 COSMOS cleartext password storage in browser localStorage](https://junglewise.ai/threats/cve-2024-47529-openc3-cosmos-cleartext-password-storage-in-browser-localstorage) (low, CVSS 3.1, published 2 Oct 2024)

## Vulnerabilities per week

Nothing in the last four weeks, down from 3 vulnerabilities in the four before. 0 critical against 1.

| 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 | 3 | 1 | 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 |

## 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, "Openc3 Cosmos vulnerabilities", https://junglewise.ai/threats/technologies/cosmos, 9 November 2026.