NATS: Leafnode connections allow spoofing of Nats-Request-Info identity headers

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-33246 · CVE overview and exploitation status

EUVD-2026-15973

GHSA-55h8-8g96-x4hj

BIT-nats-2026-33246

GO-2026-4830

cve-program · CVE-2026-33246

• https://github.com/nats-io/nats-server/security/advisories/GHSA-55h8-8g96-x4hj
• https://advisories.nats.io/CVE/secnote-2026-08.txt

euvd · EUVD-2026-15973

• https://github.com/nats-io/nats-server/security/advisories/GHSA-55h8-8g96-x4hj
• https://advisories.nats.io/CVE/secnote-2026-08.txt

nvd · CVE-2026-33246

• https://advisories.nats.io/CVE/secnote-2026-08.txt
• https://github.com/nats-io/nats-server/security/advisories/GHSA-55h8-8g96-x4hj

osv · GHSA-55h8-8g96-x4hj

• https://github.com/nats-io/nats-server/security/advisories/GHSA-55h8-8g96-x4hj
• https://nvd.nist.gov/vuln/detail/CVE-2026-33246
• https://advisories.nats.io/CVE/secnote-2026-08.txt
• https://github.com/nats-io/nats-server

osv · GO-2026-4830

• https://github.com/nats-io/nats-server/security/advisories/GHSA-55h8-8g96-x4hj
• https://advisories.nats.io/CVE/secnote-2026-08.txt

No related changes are available here.