Eclipse Jetty up to 12.0.31/12.1.5 HTTP Request resource consumption

Summaryinfo

A vulnerability classified as problematic has been found in Eclipse Jetty up to 12.0.31/12.1.5. Affected by this vulnerability is an unknown functionality of the component HTTP Request Handler. Performing a manipulation results in resource consumption. This vulnerability was named CVE-2026-1605. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic has been found in Eclipse Jetty up to 12.0.31/12.1.5. This affects some unknown processing of the component HTTP Request Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

In Eclipse Jetty, versions 12.0.0-12.0.31 and 12.1.0-12.0.5, class GzipHandler exposes a vulnerability when a compressed HTTP request, with Content-Encoding: gzip, is processed and the corresponding response is not compressed. This happens because the JDK Inflater is allocated for decompressing the request, but it is not released because the release mechanism is tied to the compressed response. In this case, since the response is not compressed, the release mechanism does not trigger, causing the leak.

The weakness was presented by Gleb Sizov as GHSA-xxh7-fcf3-rj7f. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-1605 since 01/29/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 301140 (Linux Distros Unpatched Vulnerability : CVE-2026-1605), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (301140) and EUVD (EUVD-2026-9815). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Eclipse

Name

• Jetty

Version

• 12.0.0
• 12.0.1
• 12.0.2
• 12.0.3
• 12.0.4
• 12.0.5
• 12.0.6
• 12.0.7
• 12.0.8
• 12.0.9
• 12.0.10
• 12.0.11
• 12.0.12
• 12.0.13
• 12.0.14
• 12.0.15
• 12.0.16
• 12.0.17
• 12.0.18
• 12.0.19
• 12.0.20
• 12.0.21
• 12.0.22
• 12.0.23
• 12.0.24
• 12.0.25
• 12.0.26
• 12.0.27
• 12.0.28
• 12.0.29
• 12.0.30
• 12.0.31
• 12.1.0
• 12.1.1
• 12.1.2
• 12.1.3
• 12.1.4
• 12.1.5

License

• free

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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