CVE-2024-11734: keycloak · Protection Mechanism Failure
Affects keycloakSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 26.0.8 when convenient.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.9% chance of exploitation in 30 days – higher than 60% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 26.0.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 14 Jan 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 2026-10-26.
What to do
Upgrade org.keycloak/keycloak to 26.0.8.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Mavenorg.keycloak/keycloakpkg:maven/org.keycloak/keycloakOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released fixed versions of Keycloak (26.0.8) that address this vulnerability. Users should apply the update to these versions as soon as possible. The vendor advisory provides detailed instructions for applying the update. No additional mitigation is required beyond applying the official fix.
Description
A denial of service vulnerability was found in Keycloak that could allow an administrative user with the right to change realm settings to disrupt the service. This action is done by modifying any of the security headers and inserting newlines, which causes the Keycloak server to write to a request that has already been terminated, leading to the failure of said request.