Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.16 and 1.15.10, a policy rule denying a prefix that is broader than `/32` may be ignored if there is a policy rule referencing a more narrow prefix (`CIDRSet` or `toFQDN`) and this narrower policy rule specifies either `enableDefaultDeny: false` or `- toEntities: all`. Note that a rule specifying `toEntities: world` or `toEntities: 0.0.0.0/0` is insufficient, it must be to entity `all`.This issue has been patched in Cilium v1.14.16 and v1.15.10. As this issue only affects policies using `enableDefaultDeny: false` or that set `toEntities` to `all`, some workarounds are available. For users with policies using `enableDefaultDeny: false`, remove this configuration option and explicitly define any allow rules required. For users with egress policies that explicitly specify `toEntities: all`, use `toEntities: world`.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| cilium | cilium | >= 1.15.0, < 1.15.10, >= 1.14.0, < 1.14.16 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | govulncheck-vulndb | 0.0.20241030T212825-150000.1.9.1 | SUSE-SU-2024:3911-1 |
| SLES 15 SP5 | govulncheck-vulndb | 0.0.20241030T212825-150000.1.9.1 | SUSE-SU-2024:3911-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 12 | govulncheck-vulndb | 0.0.20241104T154416-5.1 | openSUSE-SU-2024:0350-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20241030T212825-1.1 | openSUSE-SU-2024:14447-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20241030T212825-150000.1.9.1 | SUSE-SU-2024:3911-1 |
| openSUSE Leap 15.5 | govulncheck-vulndb | 0.0.20241030T212825-150000.1.9.1 | SUSE-SU-2024:3911-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | hubble-ui +1 | 0.13.1-r7 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/cilium/cilium | >= 1.15.0, < 1.15.10 | 1.15.10 | GHSA-3wwx-63fv-pfq6 |
| Go | github.com/cilium/cilium | >= 1.14.0, < 1.14.16 | 1.14.16 | GHSA-3wwx-63fv-pfq6 |
| Go | github.com/cilium/cilium | >= 1.14.0, < 1.14.16 · >= 1.15.0, < 1.15.10 | 1.14.16, 1.15.10 | GO-2024-3208 |
Advisories 3
- SUSE-SU-2024:3911-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Feb 5, 2026
- openSUSE-SU-2024:0350-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14447-1 govulncheck-vulndb-0.0.20241030T212825-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026