# phoenix (Hex) vulnerabilities

5 known vulnerabilities (3 high, 1 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://hex.pm/packages/phoenix

## Advisories (5)

### [CVE-2026-56812](https://cve.now/CVE-2026-56812): Phoenix JavaScript presence client crashes on presence keys colliding with Object.prototype members in Presence.syncState/syncDiff

- Severity: Medium 6.3
- Published: Jul 7, 2026
- Affected: from 1.2.0-rc.0, fixed in 1.5.15; from 1.6.0-rc.0, fixed in 1.6.17; from 1.7.0-rc.0, fixed in 1.7.24; from 1.8.0-rc.0, fixed in 1.8.9; from 1.2.0-rc.0, fixed in 1.5.15; from 1.6.0-rc.0, fixed in 1.6.17; from 1.7.0-rc.0, fixed in 1.7.24; from 1.8.0-rc.0, fixed in 1.8.9.

### [CVE-2026-56811](https://cve.now/CVE-2026-56811): Phoenix transports do not limit channel joins per connection, enabling process-exhaustion denial of service

- Severity: High 8.7
- Published: Jul 7, 2026
- Affected: from 0.11.0, fixed in 1.5.15; from 1.6.0-rc.0, fixed in 1.6.17; from 1.7.0-rc.0, fixed in 1.7.24; from 1.8.0-rc.0, fixed in 1.8.9; from 0.11.0, fixed in 1.5.15; from 1.6.0-rc.0, fixed in 1.6.17; from 1.7.0-rc.0, fixed in 1.7.24; from 1.8.0-rc.0, fixed in 1.8.9.

### [CVE-2026-32689](https://cve.now/CVE-2026-32689): Long-poll NDJSON body splitting causes unbounded memory allocation in Phoenix

- Severity: High 8.7
- Published: May 5, 2026
- Affected: from 1.7.0, fixed in 1.7.22; from 1.8.0, fixed in 1.8.6; from 1.7.0, fixed in 1.7.22; from 1.8.0, fixed in 1.8.6; from 1.7.0, fixed in 1.7.22; from 1.8.0, fixed in 1.8.6.

### [CVE-2022-42975](https://cve.now/CVE-2022-42975): socket/transport.ex in Phoenix before 1.6.14 mishandles check\_origin wildcarding.

- Severity: High 7.5
- Published: Oct 17, 2022
- Affected: fixed in 1.6.14.

### [CVE-2017-1000163](https://cve.now/CVE-2017-1000163): The Phoenix Framework versions 1.0.0 through 1.0.4, 1.1.0 through 1.1.6, 1.2.0, 1.2.2 and 1.3.0-rc.0 are vulnerable to unvalidated URL…

- Severity: Unrated
- Published: Nov 17, 2017
- Affected: fixed in 1.0.6; from 1.1.0, fixed in 1.1.8; from 1.2.0, fixed in 1.2.3.

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