Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Moby (Docker Engine) versions 28.2.0 through before 28.3.3 are affected. After a firewalld reload removes Docker's iptables rules, Docker does not re-create the rules that block traffic from host interfaces to container addresses. A remote host with a route to a Docker bridge network can then reach published container ports, even those bound to loopback. Upgrade to Moby 28.3.3 or later. Until then, restart the Docker daemon after any firewalld reload, re-create bridge networks, or use rootless mode.
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 |
|---|---|---|---|---|
| 5.1 | Medium | 4.0 | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0027, the 18th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:14 UTC First seen by agentprime
- 31 Oct 2026, 14:14 UTC Confirmed by OSV