Advisory details:
github_osv / GHSA-2935-2wfm-hhpv
| Advisory ID | github_osv/GHSA-2935-2wfm-hhpv |
| Aliases |
CVE-2025-2559
|
| Summary | Keycloak Denial of Service (DoS) Vulnerability via JWT Token Cache A flaw was found in Keycloak. When the configuration uses JWT tokens for authentication, the tokens are cached until expiration. If a client uses JWT tokens with an excessively long expiration time, for example, 24 or 48 hours, the cache can grow indefinitely, leading to an OutOfMemoryError. This issue could result in a denial of service condition, preventing legitimate users from accessing the system. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 4.4 |
| Risk | 2.2 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 4.9 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/03/GHSA-2935-2wfm-hhpv/GHSA-2935-2wfm-hhpv.json |
| generic_textual | MODERATE |
| Reference id | Reference type | URL |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2353868 | ||
| https://github.com/keycloak/keycloak | ||
| CVE-2025-2559 | https://access.redhat.com/security/cve/CVE-2025-2559 | |
| CVE-2025-2559 | https://nvd.nist.gov/vuln/detail/CVE-2025-2559 | |
| RHSA-2025:4335 | https://access.redhat.com/errata/RHSA-2025:4335 | |
| RHSA-2025:4336 | https://access.redhat.com/errata/RHSA-2025:4336 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-31T16:31:49Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/2xxx/CVE-2025-2559.json
Source Advisory: vulnrichment/CVE-2025-2559
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]