CVE-2026-10050Public exploitNetwork attack vector

Authentication bypass via lossy Digest password encoding

Published Aug 4, 2026 · Updated Aug 4, 2026

Authentication bypass in affected Eclipse Jetty releases allows remote attackers to access accounts via crafted Digest credentials. The Digest authentication component encodes passwords as ISO-8859-1 before hashing, silently replacing characters above U+00FF with question marks and creating collisions. Exploitation requires a known username, Digest authentication, and a password containing non-Latin-1 characters; a matching collision authenticates as that account.

CVSS severity8.7
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in affected Eclipse Jetty releases allows remote attackers to access accounts via crafted Digest credentials. The Digest authentication component encodes passwords as ISO-8859-1 before hashing, silently replacing characters above U+00FF with question marks and creating collisions. Exploitation requires a known username, Digest authentication, and a password containing non-Latin-1 characters; a matching collision authenticates as that account.

The record

CVE
CVE-2026-10050
Published
Aug 4, 2026
Updated
Aug 4, 2026
Vendor
The Eclipse Foundation
Product
Eclipse Jetty EE8
Classifications
CWE-303, CWE-173, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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 <=12.0.35
  2. Affected versionversion=12.1.0 <=12.1.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Eclipse Foundation · Eclipse Jetty EE8version=12.0.0 <=12.0.35; version=12.1.0 <=12.1.9
The Eclipse Foundation · Eclipse Jettyversion=10.0.0 <=10.0.30; version=11.0.0 <=11.0.30; version=12.0.0 <=12.0.35; version=12.1.0 <=12.1.9; version=9.4.0 <=9.4.62
The Eclipse Foundation · Eclipse Jetty EE9version=12.0.0 <=12.0.35; version=12.1.0 <=12.1.9

Published CVSS scores

8.7Jetty ProjectCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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-303Incorrect Implementation of Authentication Algorithm
CWE-173Improper Handling of Alternate Encoding
T1078Valid Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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