PatchTheCEVCVE-2026-12605: In Eclipse GlassFish versions 8.0.x before 8.0.4, CSRF + SSRF in DownloadServlet ContentSources leaks the admi
48
This month
CRITICAL 9.6UPGRADE
CVE-2026-12605 is a critical-severity flaw (CVSS 9.6) affecting glassfish. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.6 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.4% (top 63%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2026-08-06 |
| Last modified | 2026-10-23 |
Publisher (CNA): Eclipse Foundation · Vendor: eclipse
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
eclipse glassfish UPGRADE
Affected: >= 8.0.0 and < 8.0.4
Fixed in: 8.0.4
Safe to downgrade to: a release before 8.0.0
1. Check installed version
apt-cache policy glassfish || rpm -q glassfish || glassfish --version
2. UPGRADE to 8.0.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade glassfish
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade glassfish
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 8.0.0 (Debian / Ubuntu)
apt-cache madison glassfish
sudo apt install glassfish=<VERSION_BEFORE_8.0.0>
sudo apt-mark hold glassfish
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list glassfish
sudo dnf downgrade glassfish-<VERSION_BEFORE_8.0.0>
sudo dnf versionlock add glassfish
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Exact fixes by distribution
Fedora 46 · python-trimesh · FIXED · 5.2.0-1.fc46 · FEDORA-2026-429b4bad4c · source
sudo dnf upgrade --advisory=FEDORA-2026-429b4bad4c
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.