# Hex package vulnerabilities

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

Junglewise Threat Intelligence has tracked 6 vulnerabilities in Hex packages: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-86698, was published on 22 September 2026. Nothing in the last four weeks, down from 1 vulnerability in the four before. 1 package has a page of its own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 6 (0 critical, 0 exploited in the wild)

## About Hex

Hex is the package manager for the Erlang ecosystem.

## Latest Hex package vulnerabilities

- [CVE-2026-86698: Hex Package Manager insufficient session expiration in OAuth token issuance](https://junglewise.ai/threats/cve-2026-86698-insufficient-session-expiration-vulnerability-in-oauth-token) (info, published 22 Sep 2026)
- [CVE-2026-75542: Hex.pm OAuth token endpoint authorization bypass](https://junglewise.ai/threats/cve-2026-75542-hex-pm-oauth-token-endpoint-authorization-bypass) (info, CVSS 0, published 24 Aug 2026)
- [CVE-2026-56812: Phoenix Framework DoS in Presence JavaScript client](https://junglewise.ai/threats/cve-2026-56812-phoenix-framework-dos-in-presence-javascript-client) (medium, CVSS 4, published 7 Jul 2026)
- [CVE-2026-32148: Insufficient Verification of Data Authenticity vulnerability in hexpm hex (Hex.RemoteConverger module) allows…](https://junglewise.ai/threats/cve-2026-32148-insufficient-verification-of-data-authenticity-vulnerability-in) (medium, CVSS 5.9, published 30 Apr 2026)
- [CVE-2026-23940: hexpm Denial of Service via Excessive Allocation in package extraction](https://junglewise.ai/threats/cve-2026-23940-hexpm-denial-of-service-via-excessive-allocation-in-package) (medium, CVSS 6.5, published 13 Mar 2026)
- [CVE-2026-21618: hexpm hexpm Cross-Site Scripting in OAuth Authorization View](https://junglewise.ai/threats/cve-2026-21618-hexpm-hexpm-cross-site-scripting-in-oauth-authorization-view) (medium, CVSS 6.1, published 19 Jan 2026)

## Most severe Hex package vulnerabilities

- [CVE-2026-23940: hexpm Denial of Service via Excessive Allocation in package extraction](https://junglewise.ai/threats/cve-2026-23940-hexpm-denial-of-service-via-excessive-allocation-in-package) (medium, CVSS 6.5, published 13 Mar 2026)
- [CVE-2026-21618: hexpm hexpm Cross-Site Scripting in OAuth Authorization View](https://junglewise.ai/threats/cve-2026-21618-hexpm-hexpm-cross-site-scripting-in-oauth-authorization-view) (medium, CVSS 6.1, published 19 Jan 2026)
- [CVE-2026-32148: Insufficient Verification of Data Authenticity vulnerability in hexpm hex (Hex.RemoteConverger module) allows…](https://junglewise.ai/threats/cve-2026-32148-insufficient-verification-of-data-authenticity-vulnerability-in) (medium, CVSS 5.9, published 30 Apr 2026)
- [CVE-2026-56812: Phoenix Framework DoS in Presence JavaScript client](https://junglewise.ai/threats/cve-2026-56812-phoenix-framework-dos-in-presence-javascript-client) (medium, CVSS 4, published 7 Jul 2026)
- [CVE-2026-75542: Hex.pm OAuth token endpoint authorization bypass](https://junglewise.ai/threats/cve-2026-75542-hex-pm-oauth-token-endpoint-authorization-bypass) (info, CVSS 0, published 24 Aug 2026)
- [CVE-2026-86698: Hex Package Manager insufficient session expiration in OAuth token issuance](https://junglewise.ai/threats/cve-2026-86698-insufficient-session-expiration-vulnerability-in-oauth-token) (info, published 22 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 1 vulnerability in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 1 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 1 | 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 |

## Hex packages

- [Hex (Hex)](https://junglewise.ai/threats/technologies/hex): 4 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, "Hex package vulnerabilities", https://junglewise.ai/threats/vendors/hex, 9 November 2026.