CVE-2026-33249

Go/github.com/nats-io/nats-server/v2 CVE-2026-33249: medium 4.3

NATS: Message tracing can be redirected to arbitrary subject

Action: Upgrade github.com/nats-io/nats-server/v2 to 2.11.15 or later.

go get github.com/nats-io/nats-server/v2@v2.11.15

go get github.com/nats-io/nats-server/v2@v2.12.6

Affected

Fixed versions

Sources

• osv: GHSA-8m2x-3m6q-6w8j
• https://github.com/nats-io/nats-server/security/advisories/GHSA-8m2x-3m6q-6w8j
• https://nvd.nist.gov/vuln/detail/CVE-2026-33249
• https://advisories.nats.io/CVE/secnote-2026-15.txt
• https://github.com/nats-io/nats-server

CVE-2026-33249 · published 2026-03-24T20:37:08Z · modified 2026-09-10T03:50:38.243601860Z · JSON

Go/github.com/nats-io/nats-server CVE-2026-33249: unknown

NATS: Message tracing can be redirected to arbitrary subject in github.com/nats-io/nats-server

Action: No fix published. Pin and monitor.

Affected

Fixed versions

No fixed version in the source.

Sources

• osv: GO-2026-4826
• https://github.com/nats-io/nats-server/security/advisories/GHSA-8m2x-3m6q-6w8j
• https://nvd.nist.gov/vuln/detail/CVE-2026-33249
• https://advisories.nats.io/CVE/secnote-2026-15.txt

CVE-2026-33249 · published 2026-03-26T20:33:02Z · modified 2026-03-30T12:26:02.943661Z · JSON

Go/github.com/nats-io/nats-server/v2 CVE-2026-33249: unknown

NATS: Message tracing can be redirected to arbitrary subject in github.com/nats-io/nats-server

Action: Upgrade github.com/nats-io/nats-server/v2 to 2.11.15 or later.

go get github.com/nats-io/nats-server/v2@v2.11.15

go get github.com/nats-io/nats-server/v2@v2.12.6

Affected

Fixed versions

Sources

• osv: GO-2026-4826#Go/github.com/nats-io/nats-server/v2
• https://github.com/nats-io/nats-server/security/advisories/GHSA-8m2x-3m6q-6w8j
• https://nvd.nist.gov/vuln/detail/CVE-2026-33249
• https://advisories.nats.io/CVE/secnote-2026-15.txt

CVE-2026-33249 · published 2026-03-26T20:33:02Z · modified 2026-03-30T12:26:02.943661Z · JSON