CVE-2026-33222
Fixed in a distro release EPSS <1%CVSS 4.9
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, users with JetStream admin API access to restore one stream could restore to other stream names, impacting data which should have been protected against them. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, if developers have configured users to have limited JetStream restore permissions, temporarily remove those permissions.
Products: nats-io nats-server
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | github.com/nats-io/nats-server | no fix |
| Go | github.com/nats-io/nats-server/v2 | 2.11.15 |
| Go | github.com/nats-io/nats-server/v2 | 2.12.6 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | k3s | 1.35.2.1-r4 |
| Chainguard | k3s-1.32 | 1.32.13.1-r7 |
| Chainguard | k3s-1.33 | 1.33.9.1-r6 |
| Chainguard | k3s-static | 1.35.2.1-r4 |
| Chainguard | k3s-static-1.32 | 1.32.13.1-r7 |
| Chainguard | k3s-static-1.33 | 1.33.9.1-r6 |
| Chainguard | kine | 0.14.15-r1 |
| Chainguard | milvus-2.5 | 2.5.27-r4 |
| Chainguard | nats | 0.3.2-r0 |
| Chainguard | nats-fips | 0.3.2-r0 |
| Chainguard | nats-top | 0.6.3-r18 |
| Chainguard | nats-top-fips | 0.6.3-r16 |
| Chainguard | prometheus-nats-exporter | 0.19.1-r4 |
| Chainguard | prometheus-nats-exporter-fips | 0.19.1-r4 |
| Chainguard | rke2-runtime-1.31 | no fix |
| Chainguard | rke2-runtime-1.32 | no fix |
| Chainguard | rke2-runtime-1.33 | 1.33.9.2.1-r3 |
| Chainguard | rke2-runtime-1.34 | 1.34.5.2.1-r3 |
| Chainguard | rke2-runtime-1.35 | 1.35.2.2.1-r3 |
| Chainguard | rke2-runtime-fips-1.31 | no fix |
| Chainguard | rke2-runtime-fips-1.32 | no fix |
| Chainguard | rke2-runtime-fips-1.33 | 1.33.10.2.3-r2 |
| Chainguard | rke2-runtime-fips-1.34 | 1.34.6.2.1-r2 |
| Chainguard | rke2-runtime-fips-1.35 | 1.35.2.2.1-r2 |
| Chainguard | telegraf-1.35 | no fix |
| Chainguard | telegraf-1.36 | no fix |
| Chainguard | telegraf-1.37 | 1.37.3-r6 |
| Chainguard | telegraf-1.38 | 1.38.1-r1 |
| Debian 12 | nats-server | no fix |
| Debian 13 | nats-server | no fix |
| Debian 14 | nats-server | 2.12.6-1 |
| Ubuntu 24.04 LTS | nats-server | no fix |
| Ubuntu 25.10 | nats-server | no fix |
| Ubuntu 26.10 | nats-server | no fix |
| Ubuntu Pro 26.04 LTS | nats-server | no fix |
| Wolfi | k3s | 1.35.2.1-r4 |
| Wolfi | k3s-1.32 | 1.32.13.1-r7 |
| Wolfi | k3s-1.33 | 1.33.9.1-r6 |
| Wolfi | k3s-static | 1.35.2.1-r4 |
| Wolfi | k3s-static-1.32 | 1.32.13.1-r7 |
| Wolfi | k3s-static-1.33 | 1.33.9.1-r6 |
| Wolfi | kine | 0.14.15-r1 |
| Wolfi | nats | 0.3.2-r0 |
| Wolfi | nats-top | 0.6.3-r18 |
| Wolfi | telegraf-1.36 | no fix |
| Wolfi | telegraf-1.37 | 1.37.3-r6 |
| Wolfi | telegraf-1.38 | 1.38.1-r1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20260326T203309-150000.1.155.2 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 |