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CVE-2026-93649

Open redirect in Eclipse Foundation Adoptium Temurin

CVSS score

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EPSS probability

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Risk score

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Published

17 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Open Redirect and Download Vulnerability in Eclipse Adoptium Website

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

An open redirect vulnerability exists in the Eclipse Adoptium website adoptium.net, allowing arbitrary file downloads through the download parameter.

Why does it matter?

Attackers can trick users into downloading malicious binaries under the guise of a legitimate page, facilitating malware distribution.

What should be done?

  • Applying the fix provided in commit cbb53cf
  • Following vendor advisories for updates
Chain of evidence and sources2 verified claims

/[locale]/download sayfası, link sorgu parametresinden gelen URL'leri uygun olmayan biçimde doğrulamaktadır.

S0 · daybreach-canonicalS1 · nvd

Tarayıcının uyguladığı RFC 3986 nokta segmenti normalleştirmesi ile String.startsWith() kontrolü arasındaki fark zafiyete yol açmaktadır.

S0 · daybreach-canonicalS1 · nvd
Show the technical text from the sources

In the Eclipse Adoptium website (adoptium.net), in every deployment built from commit 0b24ea1 (2025-06-18) up to the fix in commit cbb53cf (2026-09-24), the post-download page /[locale]/download takes a download URL from the "link" query parameter and automatically navigates to it with a meta http-equiv="refresh". The URL is checked against a list of trusted prefixes using String.startsWith() on the raw string, while the browser applies RFC 3986 dot-segment normalisation before navigating, so a value such as https://github.com/adoptium/temurin/../../attacker/malware/releases/download/v1/jdk.exe passes the check but resolves to an attacker-controlled repository. A victim who follows a crafted adoptium.net link is shown the genuine "Thank you for downloading Eclipse Temurin" page while their browser downloads a binary of the attacker's choosing

CWE: CWE-494, CWE-601

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-93649 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Eclipse FoundationAdoptium Temurin View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
The sources have not yet published a verified CVSS metric.

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-93649 is associated with the following CWEs:

CWE-494: Common Weakness Enumeration Entry CWE-494CWE-601: Common Weakness Enumeration Entry CWE-601

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-93649 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Official Sources and Advisories

https://github.com/adoptium/adoptium.net/security/advisories/GHSA-f228-m952-5r6w#event-1046947vendor-advisoryhttps://gitlab.eclipse.org/security/cve-assignment/-/work_items/313vendor-advisoryhttps://github.com/adoptium/adoptium.net/commit/cbb53cf4a41f068a70902217473d7e2fe5d6c6advendor-advisory

Yama durumu bilinmiyor

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Follow the vendor

EF
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Eclipse Foundation

Weakness Type (CWE & CAPEC)

CWE-494 CWE-601

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