Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Apache Storm (storm-client Maven package) versions before 2.8.6 are vulnerable to unsafe deserialization of topology credentials submitted through the Nimbus Thrift API. An authenticated user with topology submission rights could supply a crafted serialized object, potentially leading to remote code execution in the Nimbus and Worker JVMs. Upgrade to 2.8.6. The source also describes an ObjectInputFilter workaround, which requires custom code.
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 |
|---|---|---|---|---|
| 8.8 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.010, the 63rd percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:20 UTC First seen by agentprime
- 31 Oct 2026, 14:20 UTC Confirmed by OSV