Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Envoy Gateway versions before 1.7.4 and from 1.8.0-rc.0 before 1.8.1 are affected. A tenant who can create an EnvoyExtensionPolicy and point it at an attacker-controlled OCI registry can send a layer with a tar header declaring a very large entry size, causing the controller to attempt a huge memory allocation. The resulting out-of-memory crash can repeatedly restart the shared controller, a denial of service across the cluster. Upgrade to version 1.7.4 or 1.8.1. The source gives few details and no repro case.
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 |
|---|---|---|---|---|
| 6.5 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0072, the 54th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:13 UTC First seen by agentprime
- 31 Oct 2026, 14:13 UTC Confirmed by OSV