How severe is CVE-2026-10051?

CVE-2026-10051 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-10051 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-10051?

CVE-2026-10051 affects Eclipse Jetty. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-10051?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-10051 published?

CVE-2026-10051 was published on 2026-07-14.

CVE-2026-10051

CVE-2026-10051 is a high-severity vulnerability in Eclipse Jetty with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Eclipse Jetty
Published: 2026-07-14
Last modified: 2026-07-14

Description

In Eclipse Jetty, a first HTTP/1.1 request with trailers causes the server to retain the trailers in subsequent requests performed over the same connection. Subsequent request that do not have trailers report the trailers of the first request. Subsequent request that do have trailers report the union of trailers of the first request and the current request.

Frequently asked questions

What is CVE-2026-10051?: In Eclipse Jetty, a first HTTP/1.1 request with trailers causes the server to retain the trailers in subsequent requests performed over the same connection. Subsequent request that do not have trailers report the trailers of the first request. Subsequent request that do have trailers report the union of trailers of the first request and the current request.
How severe is CVE-2026-10051?: CVE-2026-10051 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-10051 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-10051?: CVE-2026-10051 affects Eclipse Jetty. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-10051?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-10051 published?: CVE-2026-10051 was published on 2026-07-14.

References

https://gitlab.eclipse.org/security/cve-assignment/-/work_items/119

Affected products (1)

cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*

More vulnerabilities in Eclipse Jetty

CVE-2017-7658 — Critical (CVSS 9.8): In Eclipse Jetty Server, versions 9.2.x and older, 9.3.x (all non HTTP/1.x configurations), and 9.4.x (all HTTP/1.x…
CVE-2017-7657 — Critical (CVSS 9.8): In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with…
CVE-2016-4800 — Critical (CVSS 9.8): The path normalization mechanism in PathResource class in Eclipse Jetty 9.3.x before 9.3.9 on Windows allows remote…
CVE-2019-17638 — Critical (CVSS 9.4): In Eclipse Jetty, versions 9.4.27.v20200227 to 9.4.29.v20200521, in case of too large response headers, Jetty throws an…
CVE-2026-10050 — Critical (CVSS 9.1): In Eclipse Jetty, the Digest authentication server-side component uses ISO-8859-1 to encode the password as…
CVE-2018-12538 — High (CVSS 8.8): In Eclipse Jetty versions 9.4.0 through 9.4.8, when using the optional Jetty provided FileSessionDataStore for…

All CVEs affecting Eclipse Jetty →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

124.158.13.4 (ipv4-addr)
67.215.227.54 (ipv4-addr)
143.64.168.136 (ipv4-addr)
62.169.27.161 (ipv4-addr)
43.143.207.130 (ipv4-addr)
49.233.155.219 (ipv4-addr)
198.144.178.137 (ipv4-addr)
89.168.43.135 (ipv4-addr)