Advisory details:
github_osv / GHSA-xxh7-fcf3-rj7f
| Advisory ID | github_osv/GHSA-xxh7-fcf3-rj7f |
| Aliases |
CVE-2026-1605
|
| Summary | The Eclipse Jetty Server Artifact has a Gzip request memory leak ### Description (as reported) There is a memory leak when using `GzipHandler` in jetty-12.0.30 that can cause off-heap OOMs. This can be used for DoS attacks so I'm reporting this as a vulnerability. The leak is created by requests where the request is inflated (`Content-Encoding: gzip`) and the response is not deflated (no `Accept-Encoding: gzip`). In these conditions, a new inflator will be created by `GzipRequest` and never released back into `GzipRequest.__inflaterPool` because `gzipRequest.destory()` is not called. In heap dumps one can see thousands of `java.util.zip.Inflator` objects, which use both Java heaps and native memory. Leaking native memory causes of off-heap OOMs. Code path in `GzipHandler.handle()`: 1. Line 601: `GzipRequest` is created when request inflation is needed. 2. Lines 611-616: The callback is only wrapped in `GzipResponseAndCallback` when both inflation and deflation are needed. 3. Lines 619-625: If the handler accepts the request (returns true), `gzipRequest.destroy()` is only called in the "request not accepted" path (returns false) When deflation is needed, `GzipResponseAndCallback` (lines 102 and 116) properly calls `gzipRequest.destroy()` in its `succeeded()` and `failed()` methods. But this wrapper is only created when deflation is needed. Possible fix: The callback should be wrapped whenever a `GzipRequest` is created, not just when deflation is needed. This ensures `gzipRequest.destroy()` is always called when the request completes. ### Impact The leak causes the JVM to crash with OOME. ### Patches No patches yet. ### Workarounds Disable `GzipHandler`. ### References https://github.com/jetty/jetty.project/issues/14260 https://gitlab.eclipse.org/security/cve-assignment/-/issues/79 |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.8 |
| Risk | 3.4 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 7.5 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xxh7-fcf3-rj7f/GHSA-xxh7-fcf3-rj7f.json |
| generic_textual | HIGH |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/jetty/jetty.project | ||
| https://github.com/jetty/jetty.project/issues/14260 | ||
| https://gitlab.eclipse.org/security/cve-assignment/-/issues/79 | ||
| CVE-2026-1605 | https://nvd.nist.gov/vuln/detail/CVE-2026-1605 | |
| GHSA-xxh7-fcf3-rj7f | Other | https://github.com/jetty/jetty.project/security/advisories/GHSA-xxh7-fcf3-rj7f |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.