Unauthenticated domain takeover via REST token disclosure
Published Aug 6, 2026 · Updated Aug 6, 2026
SSRF in DownloadServlet in Eclipse GlassFish 8.0.0 through 8.0.3 allows remote attackers to steal an administrator REST token. Four ContentSource classes concatenate the untrusted restUrl parameter into outbound request targets, and RestUtil attaches the active gfresttoken cookie without restricting the destination. A logged-in administrator must load the crafted URL; the stolen token grants administrative REST access, including WAR deployment and code execution as the server process, until the token expires.
Summary
What happened
SSRF in DownloadServlet in Eclipse GlassFish 8.0.0 through 8.0.3 allows remote attackers to steal an administrator REST token. Four ContentSource classes concatenate the untrusted restUrl parameter into outbound request targets, and RestUtil attaches the active gfresttoken cookie without restricting the destination. A logged-in administrator must load the crafted URL; the stolen token grants administrative REST access, including WAR deployment and code execution as the server process, until the token expires.
The record
- CVE
- CVE-2026-12605
- Published
- Aug 6, 2026
- Updated
- Aug 6, 2026
- Vendor
- The Eclipse Foundation
- Product
- Eclipse GlassFish
- Classifications
- CWE-918, T1190, T1550.004, T1539
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 6, 2026CVE publishedPublication date reported by the CVE source.
- Aug 6, 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.
- Affected versionversion=8.0.0 <8.0.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- Public end-to-end REST token theft reproductionfunctional · demonstrated
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Technologies
Your stack
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Your stack
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