# org.http4s:http4s-ember-core\_2.13 (Maven) vulnerabilities

11 known vulnerabilities (1 critical, 7 high, 3 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
- Dependents: 2
- Registry: https://central.sonatype.com/artifact/org.http4s/http4s-ember-core_2.13

## Advisories (11)

### [CVE-2026-88975](https://cve.now/CVE-2026-88975): Http4s: Ember HTTP/2 buffers a frame's declared payload before checking SETTINGS\_MAX\_FRAME\_SIZE

- Severity: High 7.5
- Published: Sep 15, 2026
- Affected: fixed in 0.23.37; from 1.0.0-M1, fixed in 1.0.0-M48.

### [CVE-2026-69206](https://cve.now/CVE-2026-69206): Http4s: DigestAuth allows replay of captured requests

- Severity: Medium 5.9
- Published: Sep 15, 2026
- Affected: fixed in 0.23.35; from 1.0.0-M1, fixed in 1.0.0-M47.

### [CVE-2026-69202](https://cve.now/CVE-2026-69202): Http4s Ember HTTP/2: unbounded inbound body buffering

- Severity: High 7.5
- Published: Sep 15, 2026
- Affected: fixed in 0.23.35; from 1.0.0-M1, fixed in 1.0.0-M47.

### [CVE-2026-69218](https://cve.now/CVE-2026-69218): Http4s Ember HTTP/2: unbounded continuation frame accumulation

- Severity: High 7.5
- Published: Sep 15, 2026
- Affected: fixed in 0.23.35; from 1.0.0-M1, fixed in 1.0.0-M47.

### [CVE-2026-69203](https://cve.now/CVE-2026-69203): Http4s Ember HTTP/2: does not enforce SETTINGS\_MAX\_CONCURRENT\_STREAMS

- Severity: High 7.5
- Published: Sep 15, 2026
- Affected: fixed in 0.23.35; from 1.0.0-M1, fixed in 1.0.0-M47.

### [CVE-2026-69205](https://cve.now/CVE-2026-69205): Http4s: Ember Transfer-Encoding value parsing (TE.CL / TE.0 request smuggling)

- Severity: High 8.7
- Published: Sep 15, 2026
- Affected: fixed in 0.23.35; from 1.0.0-M1, fixed in 1.0.0-M47.

### [CVE-2026-69213](https://cve.now/CVE-2026-69213): Http4s Ember HTTP/2: unbounded outbound frame queue

- Severity: High 7.5
- Published: Sep 15, 2026
- Affected: fixed in 0.23.35; from 1.0.0-M1, fixed in 1.0.0-M47.

### [CVE-2026-69216](https://cve.now/CVE-2026-69216): Http4s: Ember chunk parser lenience (TE.TE request smuggling)

- Severity: Medium 5.4
- Published: Sep 15, 2026
- Affected: fixed in 0.23.35; from 1.0.0-M1, fixed in 1.0.0-M47.

### [CVE-2026-69204](https://cve.now/CVE-2026-69204): Http4s: Ember accepts Transfer-Encoding combined with Content-Length (CL.TE request smuggling)

- Severity: Critical 9.2
- Published: Sep 15, 2026
- Affected: fixed in 0.23.35; from 1.0.0-M1, fixed in 1.0.0-M47.

### [CVE-2026-54556](https://cve.now/CVE-2026-54556): Http4s: HTTP/2 Denial of Service with Ember Backend

- Severity: High 8.2
- Published: Aug 26, 2026
- Affected: from 1.0.0-M1, fixed in 1.0.0-M47; fixed in 0.23.35.

### [CVE-2025-59822](https://cve.now/CVE-2025-59822): Http4s vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer section

- Severity: Medium 6.3
- Published: Sep 23, 2025
- Affected: fixed in 0.23.31; from 1.0.0-M1, fixed in 1.0.0-M45.

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