CVE-2026-5795

CVE-2026-5795 is a high-severity vulnerability in Eclipse Jetty with a CVSS 3.x base score of 7.4. 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-226.

Key facts

Description

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.

Frequently asked questions

What is CVE-2026-5795?
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 severe is CVE-2026-5795?
CVE-2026-5795 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-5795 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5795?
CVE-2026-5795 affects Eclipse Jetty. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5795?
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.
Does CVE-2026-5795 have an EU (EUVD) identifier?
Yes. CVE-2026-5795 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20473.
When was CVE-2026-5795 published?
CVE-2026-5795 was published on 2026-04-08 and last updated on 2026-08-17.

References

Affected products (1)

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Threat intelligence

Threat-intel indicators referencing this CVE: