CVE-2026-8384Public exploitNetwork attack vector

Authentication bypass via stale path normalization state

Published Jul 14, 2026 · Updated Jul 14, 2026

Path traversal in Eclipse Jetty 12.0.0 through 12.0.34 and 12.1.0 through 12.1.8 allows remote attackers to bypass path-based access controls. URIUtil.canonicalPath() consumes a semicolon parameter through the next slash but retains the stale semicolon state, so a following dot segment is not normalized. Exploitation requires an application to rely on Jetty's unresolved canonical path for authorization; Jetty's resource alias checker prevents direct file serving.

CVSS severity5.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Eclipse Jetty 12.0.0 through 12.0.34 and 12.1.0 through 12.1.8 allows remote attackers to bypass path-based access controls. URIUtil.canonicalPath() consumes a semicolon parameter through the next slash but retains the stale semicolon state, so a following dot segment is not normalized. Exploitation requires an application to rely on Jetty's unresolved canonical path for authorization; Jetty's resource alias checker prevents direct file serving.

The record

CVE
CVE-2026-8384
Published
Jul 14, 2026
Updated
Jul 14, 2026
Vendor
The Eclipse Foundation
Product
Eclipse Jetty
Classifications
CWE-647, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.0.0 <=12.0.34
  2. Affected versionversion=12.1.0 <=12.1.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Eclipse Foundation · Eclipse Jettyversion=12.0.0 <=12.0.34; version=12.1.0 <=12.1.8

Published CVSS scores

5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-647Use of Non-Canonical URL Paths for Authorization Decisions
T1190Exploit Public-Facing Application

Public exploit references

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Technologies

Your stack

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Your stack

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