What is CVE-2026-12605?

CVE-2026-12605 is a critical-severity vulnerability in Eclipse Glassfish, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.6/10. Published 2026-08-06.

How severe is CVE-2026-12605?

Critical severity. CVSS v3 base score is 9.6 out of 10.

SSRF in Eclipse Glassfish

CVE-2026-12605

In Eclipse GlassFish versions 8.0.x before 8.0.4, CSRF + SSRF in DownloadServlet ContentSources leaks the admin `gfresttoken` to attacker-controlled host if the victim is authenticated into the Admin Console -\> full unauthenticated takeover of Eclipse GlassFish domain until the token expires.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-08-06 · last modified 2026-10-23.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (37.6th percentile), scored 2026-11-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Eclipse Glassfish
Eclipse Foundation Glassfish — versions 8.0.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

gitlab.eclipse.org/security/vulnerability-reports/-/work_items/445 (Exploit, Vendor Advisory)
gitlab.eclipse.org/security/cve-assignment/-/work_items/127 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-12605?: CVE-2026-12605 is a critical-severity vulnerability in Eclipse Glassfish, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.6/10. Published 2026-08-06.
How severe is CVE-2026-12605?: Critical severity. CVSS v3 base score is 9.6 out of 10.