Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Apache MINA mina-core versions 2.1.0 through 2.1.11 and 2.2.0 through 2.2.6 are affected. The fix for CVE-2026-41409 was not applied to the 2.1.x and 2.2.x branches, leaving the classname allowlist applied too late when deserializing objects through IoBuffer.getObject(), so a static initializer in a class being read may already have run. The source does not describe the attacker's required access in detail. Upgrade mina-core to 2.1.12 or 2.2.7.
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 |
|---|---|---|---|---|
| 9.8 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA (apache) |
- CISA KEV Not listed.
- EPSS 0.0066, the 51st percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:16 UTC First seen by agentprime
- 31 Oct 2026, 14:16 UTC Confirmed by OSV