CVE-2026-102489

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-10-02), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — KEV-added this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 1.4%CVSS: 9.8Exploit: cisa kev · ssvc activeExposed services: Not assessed

A fix is available — apply it.

Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The vulnerability is also present in version 7.0.0 to version 7.1.3, but not exploitable due to environment conditions.

CVSS v3
9.8
EG Score
9.8CRITICALhigh confidence
EG Risk
99
EG Risk 99/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
CISA SSVC: Attend at low mission impact; Act at medium or high.
Action: A fix is available. Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high.
EPSS PROB
1.4%
EPSS %ILE
71st
KEV
⚠ Exploited

CISA SSVCAttend at low mission impact; Act at medium or high.

A fix is available. Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high.

Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 30, 2026

Last Modified

October 3, 2026

Advisory Details (3)

Auto-updated Oct 3, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102489
generic

Redirecting…

https://csirt.divd.nl/DIVD-2026-00015
generic

Redirecting…

https://csirt.divd.nl/CVE-2026-102489

Vendor Advisories for CVE-2026-102489(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 60× in last 7d / 60× 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.

  1. 2026-10-05 09:44 UTCGHSA enrichment
  2. 2026-10-05 05:38 UTCGHSA enrichment
  3. 2026-10-05 01:31 UTCEG score recompute
  4. 2026-10-05 01:31 UTCGHSA enrichment
  5. 2026-10-04 23:21 UTCEPSS rescore
  6. 2026-10-04 21:25 UTCGHSA enrichment
  7. 2026-10-04 17:18 UTCGHSA enrichment
  8. 2026-10-04 13:12 UTCGHSA enrichment
  9. 2026-10-04 09:05 UTCGHSA enrichment
  10. 2026-10-04 04:59 UTCGHSA enrichment
  11. 2026-10-04 00:53 UTCGHSA enrichment
  12. 2026-10-03 20:46 UTCGHSA enrichment
  13. 2026-10-03 16:40 UTCEG score recompute
  14. 2026-10-03 16:40 UTCGHSA enrichment
  15. 2026-10-03 14:25 UTCEPSS rescore
  16. 2026-10-03 12:34 UTCGHSA enrichment
  17. 2026-10-03 08:27 UTCGHSA enrichment
  18. 2026-10-03 04:20 UTCGHSA enrichment
  19. 2026-10-03 04:19 UTCNVD updateCVSS v4 → 9.4
  20. 2026-10-03 03:59 UTCGHSA enrichment
  21. 2026-10-03 03:59 UTCMITRE cvelistV5CVSS v4 → 8.7
  22. 2026-10-03 02:25 UTCGHSA enrichment
  23. 2026-10-02 22:19 UTCEG score recompute
  24. 2026-10-02 22:19 UTCGHSA enrichment
  25. 2026-10-02 18:13 UTCGHSA enrichment
Show 35 more
  1. 2026-10-02 18:12 UTCGHSA enrichment
  2. 2026-10-02 18:12 UTCGHSA enrichment
  3. 2026-10-02 17:29 UTCGHSA enrichment
  4. 2026-10-02 17:11 UTCEG score recompute▲ 0.80
  5. 2026-10-02 17:11 UTCGHSA enrichment
  6. 2026-10-02 17:11 UTCNVD updateCVSS v3 → 9.8 · CVSS v4 → 9.4 · severity → CRITICAL
  7. 2026-10-02 16:45 UTCEG score recompute
  8. 2026-10-02 16:45 UTCGHSA enrichment
  9. 2026-10-02 16:31 UTCEG score recompute▼ 0.40
  10. 2026-10-02 16:30 UTCGHSA enrichment
  11. 2026-10-02 16:30 UTCMITRE cvelistV5CVSS v3 → 8.7 · CVSS v4 → 8.7 · severity → HIGH
  12. 2026-10-02 16:05 UTCEG score recompute▲ 0.40
  13. 2026-10-02 16:05 UTCGHSA enrichment
  14. 2026-10-02 16:04 UTCNVD updateCVSS v3 → 9.4 · CVSS v4 → 9.4 · severity → CRITICAL
  15. 2026-10-02 15:46 UTCEG score recompute▲ 0.30
  16. 2026-10-02 15:46 UTCGHSA enrichment
  17. 2026-10-02 15:45 UTCCISA KEV update
  18. 2026-10-02 09:11 UTCEG score recompute▼ 0.70
  19. 2026-10-02 09:11 UTCGHSA enrichment
  20. 2026-10-02 09:10 UTCMITRE cvelistV5CVSS v3 → 8.7 · CVSS v4 → 8.7 · severity → HIGH
  21. 2026-10-02 05:12 UTCGHSA enrichment
  22. 2026-10-02 01:03 UTCGHSA enrichment
  23. 2026-10-01 20:55 UTCEG score recompute
  24. 2026-10-01 20:55 UTCGHSA enrichment
  25. 2026-10-01 19:49 UTCEPSS rescore
  26. 2026-10-01 16:46 UTCGHSA enrichment
  27. 2026-10-01 12:34 UTCGHSA enrichment
  28. 2026-10-01 08:28 UTCGHSA enrichment
  29. 2026-10-01 04:21 UTCGHSA enrichment
  30. 2026-10-01 00:13 UTCGHSA enrichment
  31. 2026-09-30 20:01 UTCGHSA enrichment
  32. 2026-09-30 17:25 UTCEG score recompute▲ 0.70
  33. 2026-09-30 17:24 UTCNVD updateCVSS v3 → 9.4 · CVSS v4 → 9.4 · severity → CRITICAL
  34. 2026-09-30 16:32 UTCEG score recompute
  35. 2026-09-30 16:31 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2026-102489?
CVE-2026-102489 is a critical vulnerability published on September 30, 2026. Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The vulnerability is also present in version 7.0.0 to version 7.1.3, but not exploitable due to environment conditions.
When was CVE-2026-102489 disclosed?
CVE-2026-102489 was first published on September 30, 2026, with the most recent update on October 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-102489 actively exploited?
Yes. CISA added CVE-2026-102489 to the Known Exploited Vulnerabilities catalog on October 2, 2026, affecting Zammad GmbH Zammad. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2026-102489?
CVE-2026-102489 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2026-102489?
CVE-2026-102489 affects Zammad GmbH Zammad.
How do I remediate CVE-2026-102489?
A fix for CVE-2026-102489 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-102489 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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