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Dossier · Vulnerability

Actively exploited · CISA KEV · NVD published 2026-09-30

CVE-2026-102489

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 bug is also present in version 7.0.0 to version 7.1.2, but not exploitable due to changes in the underlying framework.

  1. KEV
  2. 5 days →First PoC

Signals

Exploited in the wild
Yesadded 2026-10-02 · due 2026-10-05. An observation, not a forecast.
EPSS · 30-day forecast
1%Chance of exploitation in the next 30 days, 69th percentile of all CVEs. A forecast; KEV outranks it.
CVSS · NVD · CRITICAL
9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Internet exposure
not stated by sourcesNo exposure census on this CVE's dispatches.

Exploits

3 known · links only

GitHub PoCs · by trust, then stars3

  1. 1xPwn/CVE-2026-102489 ↗Trust ok 100

    CVE-2026-102489 exploit in golang

    ★ 7 · created 2026-10-11

  2. horizon3ai/CVE-2026-102489 ↗Trust ok 100

    Zammad Session Leak to Remote Code Execution

    ★ 7 · created 2026-10-06

  3. Hunt-Benito/the-cookie-in-the-error-message-cve-2026-102489-zammad-session-hijack-to-rce ↗Trust ok 100

    ★ 0 · created 2026-10-07

Fake proof-of-concept repositories have been used to deliver malware to the researchers who run them. The trust verdict is our engine's heuristic over the repository (account age, what it ships, how its stars arrived); it is a reason to read the code first, not a finding about its author.

On the wire

1 dispatch
  1. NCSC-2026-0396 [1.00] [H/H] Kwetsbaarheden aangetroffen in ZammadKEV

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