VDB
CVE-2026-107227
CVE-2026-107227
PUBLISHED
CVSS 7.5 HIGH
Reported by GitHub_M · Published October 7, 2026
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.2.0 until 3.0.14, WebSocket permessage-deflate decompression is unbounded when compression is enabled. The inbound pipeline aggregates compressed frames before WebSocketClientCompressionHandler inflates them, so webSocketMaxFrameSize and webSocketMaxBufferSize do not bound decompressed output. A malicious WebSocket peer can send a small compressed message that expands to a very large Netty buffer and exhausts JVM heap. This issue is fixed in version 3.0.14.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| AsyncHttpClient | async-http-client | >= 3.0.0, < 3.0.14, >= 2.2.0, <= 2.16.1 |
| chainguard | pinot-fips | 0 |
| chainguard | druid | 0 |
| AsyncHttpClient | async-http-client | 3.0.0, 2.2.0 |
| chainguard | pinot | 0 |
| wolfi | druid | 0 |
| Maven | org.asynchttpclient:async-http-client | 3.0.0, 2.2.0 |
Timeline
- Oct 7, 2026 CVE Published
- Oct 8, 2026 EPSS Score
- Oct 8, 2026 CVE Updated
- Oct 11, 2026 EPSS Score
- Oct 13, 2026 EPSS Score
- Oct 14, 2026 EPSS Score
- Oct 16, 2026 EPSS Score
- Oct 19, 2026 EPSS Score
- Oct 21, 2026 EPSS Score
- Oct 25, 2026 EPSS Score
- Oct 29, 2026 EPSS Score
- Oct 30, 2026 Security Advisory
References
- https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-x8v2-478q-2hvg x_refsource_CONFIRM
- https://github.com/AsyncHttpClient/async-http-client/commit/b61637f30327f314b7693418f12ce141ac6b2b30 x_refsource_MISC
- https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.14 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-107227 advisory
- https://github.com/advisories/GHSA-x8v2-478q-2hvg advisory