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CVE-2026-76184

• Severity: high (CVSS 8.2 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-15
• Weakness: CWE-200

Description

In Eclipse Jetty, HttpClient may receive a redirect of the form: ``` /secure/../evil ``` If an attacker is able to control the redirects, then HttpClient matches authentication credentials against `/secure` rather than normalizing the path to `/evil`, and will therefore follow the redirect sending the `Authorization` header for `/secure` to `/evil`. This also mean that the attacker must have an evil application deployed on the same domain as the target.

Affected products

• The Eclipse Foundation Eclipse Jetty: from 12.1.0 through 12.1.12; from 12.0.0 through 12.0.38; from 11.0.0 through 11.0.32; from 10.0.0 through 10.0.32; from 9.4.0 through 9.4.64

References

• https://github.com/jetty/jetty.project/security/advisories/GHSA-qfr2-43g5-g768
• https://gitlab.eclipse.org/security/cve-assignment/-/work_items/236
• https://github.com/jetty/jetty.project/security/advisories/GHSA-qfr2-43g5-g768

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