GHSA-29wv-cv7p-xjc2: org.glassfish.main.admingui:admingui (CVE-2026-2587)

GlassFish's gadget handler is vulnerable to RCE

CVSS 9.6 CriticalCriticalEPSS 0.0065 · 51st percentile

Critical, because:

CVSS score 9.6: 9.0 or more.

Published by the GitHub Advisory Database at 19 May 2026, 15:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
org.glassfish.main.admingui:admingui	Maven	<8.0.2	8.0.2
org.glassfish.jsftemplating:jsftemplating	Maven	<4.2.0	4.2.0

Identifiers

GHSA-29wv-cv7p-xjc2 · CVE-2026-2587

Weakness (CWE)

CWE-917

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GlassFish admingui before 8.0.2 and jsftemplating before 4.2.0 evaluate user-supplied values as Expression Language expressions in the gadget handler without proper sanitization. A remote attacker can use this to execute arbitrary commands and fully compromise the host. Upgrade admingui to 8.0.2 and jsftemplating to 4.2.0.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.6	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	CNA (eclipse)

CISA KEV Not listed.
EPSS 0.0065, the 51st percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:17 UTC First seen by agentprime
31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.