Red Hat Keycloak before version 2.5.1 has an implementation of HMAC verification for JWS tokens that uses a method that runs in non-constant time, potentially leaving the application vulnerable to timing attacks.
CVE-2017-2585
This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 2.0%, top 21% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.9
- EG Score
- 5.9(medium)
- EPSS
- 78.8%
- KEV
- Not listed
Published
March 12, 2018
Last Modified
November 21, 2024
References (12)
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2017-0876.html
- secalert@redhathttp://www.securityfocus.com/bid/97393
- secalert@redhathttp://www.securitytracker.com/id/1038180
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:0872
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:0873
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1412376
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2017-0876.html
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/97393
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038180
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:0872
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:0873
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1412376
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | patch | 2017-04-04 | redhat |
| redhat | rh-sso7-zxing-0:3.2.1-1.redhat_4.1.jbcs.el6 | 2017-04-04 | redhat |
| redhat | rh-sso7-zxing-0:3.2.1-1.redhat_4.1.jbcs.el7 | 2017-04-04 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.keycloak:keycloak-core | 1.0-alpha-1 ... 2.5.0.Final (64 versions) | 2.5.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(3)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 14× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 22:08 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-21 16:18 UTCOSV refresh
- 2026-07-21 15:21 UTCEPSS rescore
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- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-07-06 02:20 UTCEPSS rescore
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- 2026-07-04 11:56 UTCOSV refresh
- 2026-07-04 06:28 UTCEPSS rescore
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- 2026-06-15 23:43 UTCOSV refresh
- 2026-06-15 17:45 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 10:37 UTCEG score recompute
- 2026-05-28 10:37 UTCVendor advisory
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-24 15:21 UTCOSV refresh
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Frequently asked(5)
What is CVE-2017-2585?
When was CVE-2017-2585 disclosed?
Is CVE-2017-2585 actively exploited?
What is the CVSS score of CVE-2017-2585?
How do I remediate CVE-2017-2585?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-2585
Is Your Infrastructure Affected by CVE-2017-2585?
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