CVE-2026-107123: Uncontrolled Resource Consumption
Source GCVE Database
Not known to be exploited · CVSS 7.5 High.
Data as of 5 Nov 2026, 19:47 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 7.5 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 5 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Build of Keycloakkeycloak-services | Affected– | Fixed in– |
| Red Hat Build of Keycloakrhbk/keycloak-rhel9 | Affected– | Fixed in– |
| Red Hat Single Sign-On 7keycloak-services | Affected– | Fixed in– |
AI-suggested
Currently, no effective mitigation or patch is available that meets Red Hat's criteria for ease of deployment and applicability. Users should monitor vendor advisories for updates. No workaround or temporary fix is provided by Red Hat at this time.
Description
A vulnerability in Keycloak's SAML XML processing allows an unauthenticated remote attacker to cause high CPU usage by sending specially crafted SAML requests with excessively long dateTime or duration values. This leads to a denial of service (DoS) condition affecting all users. The flaw arises from improper validation of these string lengths before XML parsing.