Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Versions of org.wildfly.security:wildfly-elytron before 1.15.15.Final, and from 1.16.0.CR1 before 1.20.3.Final, use an unsafe comparison method that is open to timing attacks. The source does not say what an attacker must do to exploit this, but it states that an attacker could gain access to secure information or impersonate an authenticated user. Upgrade to 1.15.15.Final or 1.20.3.Final, depending on your release line.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.4 | High | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.0060, the 48th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:18 UTC First seen by agentprime
- 31 Oct 2026, 14:18 UTC Confirmed by OSV