CVE-2026-5795
HIGHDescription
In Eclipse Jetty, the class JASPIAuthenticator initiates the authentication checks, which set two ThreadLocal variable. Upon returning from the initial checks, there are conditions that cause an early return from the JASPIAuthenticator code without clearing those ThreadLocals. A subsequent request using the same thread inherits the ThreadLocal values, leading to a broken access control and privilege escalation.
How to fix
This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.
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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploit Intelligence
Moderate risk: more likely to be exploited than 43% of all known CVEs.
References
Related Vulnerabilities
Other CWE-226 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2020-27218 | Medium | 4.8 | 8.3% | - | Fix |
| CVE-2018-7166 | High | 7.5 | 3.2% | - | Fix |
| CVE-2022-39393 | High | 8.6 | 0.7% | - | Fix |
| CVE-2024-32036 | Medium | 5.3 | 0.6% | - | Fix |
| CVE-2026-47247 | High | 7.5 | 0.5% | - | Fix |
| CVE-2019-25560 | High | 7.5 | 0.5% | - | - |
Common questions
How do I fix CVE-2026-5795?
Published advisories record a fix for 38 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2026-5795 being actively exploited?
Not that we know of. CVE-2026-5795 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.53% is the estimated probability that it will be exploited in the next 30 days. That is higher than 43% of all scored CVEs.
How severe is CVE-2026-5795?
CVE-2026-5795 has a CVSS v3 base score of 7.4, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-5795 affect?
Published advisories record a fix for jetty-annotations (Amazon), jetty-ant (Amazon), jetty-client (Amazon), jetty-continuation (Amazon), and 34 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-14.