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VulnerabilityPublished

CVE-2026-120984: Code Injection

Source GCVE Database

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Authoritative record:CVE-2026-120984· Critical 9.1

Not known to be exploited · CVSS 9.1 Critical.

Data as of 7 Nov 2026, 16:04 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.19.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Build of Keycloakkeycloak-servicesAffected–Fixed in–
Red Hat Build of Keycloakrhbk/keycloak-rhel9Affected–Fixed in–
Red Hat Single Sign-On 7keycloak-servicesAffected–Fixed in–

AI-suggested

Red Hat currently does not provide an effective mitigation or patch that meets their criteria for ease of use, applicability, or stability. Users should monitor Red Hat advisories for updates. Exploitation requires elevated authenticated privileges, so restricting client management roles and monitoring for unauthorized access is advisable until a fix is available.

Description

A vulnerability in the Keycloak server's client management component allows an authenticated attacker with client management permissions to upload a malicious JavaScript policy due to improper clearing of an internal session attribute. This flaw enables execution of arbitrary code on the server during authorization requests, potentially compromising the entire system. Exploitation requires elevated privileges and authenticated access. Red Hat rates this vulnerability as Important rather than Critical due to these requirements. No effective mitigation or patch is currently available.

References

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