CVE-2026-2586

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-19. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An authenticated Remote Code Execution (RCE) vulnerability was identified in GlassFish's Administration Console. A user with access to the panel can send crafted requests that allow the execution of arbitrary operating system commands with the privileges of the application service user. This issue affects Eclipse GlassFish: from 8.0.0 to 8.0.1, fixed in 8.0.2; 7.1.0, fixed in 7.1.1; from 7.0.0 to 7.0.25, fixed in 7.0.26. Impact on versions from 5.1.0 to 6.2.5 is unknown.

CVSS v3
9.1
EG Score
9.1(medium)
EPSS
52.9%
KEV
Not listed

Published

May 19, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated May 19, 2026
No patch confirmed yet.
generic

Remote Code Execution via EL Injection [CVE Reservation for issue 327] (#87) · Issues · Eclipse Projects Security / cve-assignment · GitLab

https://gitlab.eclipse.org/security/cve-assignment/-/issues/87

Vendor Advisories for CVE-2026-2586(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(2 across 1 ecosystem)
Maven(2)
PackageVulnerable rangeFixed inDependents
org.glassfish.jsftemplating:jsftemplating1.2.0-1 ... 4.1.0-M1 (12 versions)4.2.0—
org.glassfish.main.admingui:console-common3.1.2 ... 8.0.1 (83 versions)8.0.2—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 86× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 204 total refreshes for this CVE.

  1. 2026-07-09 19:10 UTCEPSS rescore
  2. 2026-07-08 15:15 UTCEPSS rescore
  3. 2026-07-07 13:46 UTCEPSS rescore
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  12. 2026-06-29 20:55 UTCEG score recompute
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  1. 2026-06-27 03:08 UTCEPSS rescore
  2. 2026-06-26 19:48 UTCEG score recompute
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  6. 2026-06-25 13:49 UTCEPSS rescore
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  20. 2026-06-18 02:06 UTCEG score recompute
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  22. 2026-06-17 17:53 UTCEPSS rescore
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  28. 2026-06-16 17:52 UTCEPSS rescore
  29. 2026-06-16 07:54 UTCEG score recompute
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  32. 2026-06-15 17:48 UTCEPSS rescore
  33. 2026-06-15 16:26 UTCEG score recompute
  34. 2026-06-15 05:38 UTCEG score recompute
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  36. 2026-06-14 23:18 UTCEPSS rescore
  37. 2026-06-14 20:49 UTCEG score recompute
  38. 2026-06-14 16:25 UTCEG score recompute
  39. 2026-06-14 12:01 UTCEG score recompute
  40. 2026-06-14 07:36 UTCEG score recompute
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  42. 2026-06-13 23:00 UTCEPSS rescore
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  45. 2026-06-13 09:51 UTCEG score recompute
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  47. 2026-06-13 01:02 UTCEG score recompute
  48. 2026-06-12 23:12 UTCEPSS rescore
  49. 2026-06-12 23:12 UTCEPSS rescore
  50. 2026-06-12 20:34 UTCEG score recompute
  51. 2026-06-12 16:10 UTCEG score recompute
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  55. 2026-06-11 22:29 UTCEG score recompute
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  57. 2026-06-11 14:00 UTCEPSS rescore
  58. 2026-06-11 13:39 UTCEG score recompute
  59. 2026-06-11 09:15 UTCEG score recompute
  60. 2026-06-11 04:51 UTCEG score recompute
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  62. 2026-06-10 22:18 UTCEPSS rescore
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  64. 2026-06-10 20:03 UTCEG score recompute
  65. 2026-06-10 15:39 UTCEG score recompute
  66. 2026-06-10 13:22 UTCEPSS rescore
  67. 2026-06-10 11:15 UTCEG score recompute
  68. 2026-06-10 06:51 UTCEG score recompute
  69. 2026-06-10 02:27 UTCEG score recompute
  70. 2026-06-09 22:03 UTCEG score recompute
  71. 2026-06-09 17:35 UTCEG score recompute
  72. 2026-06-09 13:11 UTCEG score recompute
  73. 2026-06-09 08:47 UTCEG score recompute
  74. 2026-06-09 04:22 UTCEG score recompute
  75. 2026-06-08 23:58 UTCEG score recompute

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCDeepSecurityResearch/CVE-2026-2586
    First seen Jun 1, 2026
    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-2586?
CVE-2026-2586 is a critical vulnerability published on May 19, 2026. An authenticated Remote Code Execution (RCE) vulnerability was identified in GlassFish's Administration Console. A user with access to the panel can send crafted requests that allow the execution of arbitrary operating system commands with the privileges of the application service user. This issue…
When was CVE-2026-2586 disclosed?
CVE-2026-2586 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-2586 actively exploited?
CVE-2026-2586 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-2586?
CVE-2026-2586 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-2586?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-2586, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-2586

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