Keycloak-services: keycloak-services: unauthenticated persistent disk exhaustion via theme gzip cache
Historical advisory recorded 6 Nov 2026 19:02:40 UTC. Read the latest advisory.
cve-program · CVE-2026-110932
PublishedA flaw was found in the theme resource endpoint of Keycloak, an open-source identity and access management solution. The issue occurs because the server fails to validate theme names before using them as keys for an on-disk gzip cache. An unauthenticated attacker can exploit this by sending many requests with unique, fabricated theme names, leading to persistent disk space exhaustion that survives server restarts and causes service disruptions.
Read the publisher's advisoryAffected versions, risk and source history
cve-program · CVE-2026-110932
PublishedKeycloak-services: keycloak-services: unauthenticated persistent disk exhaustion via theme gzip cache
A flaw was found in the theme resource endpoint of Keycloak, an open-source identity and access management solution. The issue occurs because the server fails to validate theme names before using them as keys for an on-disk gzip cache. An unauthenticated attacker can exploit this by sending many requests with unique, fabricated theme names, leading to persistent disk space exhaustion that survives server restarts and causes service disruptions.
- Source published
- 5 Nov 2026 16:04:56 UTC
- Source modified
- 6 Nov 2026 17:12:54 UTC
- Saved here
- 6 Nov 2026 19:02:40 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H