Priority HIGH 72
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00593 · Published 2026-03-25 · Fixed in 2.11.14, 2.12.5 CWE-190
Priority MEDIUM 51
NATS nats-server 2.2.0 through 2.7.4 allows directory traversal because of an unintended path to a management action from a management account.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.01158 · Published 2023-09-19 · Fixed in 2.7.4 CWE-22
Priority MEDIUM 47
The JWT library in NATS nats-server before 2.1.9 has Incorrect Access Control because of how expired credentials are handled.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02328 · Published 2020-11-06 · Fixed in 1.1.0 CWE-798
Priority MEDIUM 43
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system.
CVSS 3.1HIGH 8.6· Network · No auth · No interaction · EPSS 0.00372 · Published 2026-03-25 · Fixed in 2.11.15, 2.12.6 CWE-256
Priority MEDIUM 41
NATS nats-server before 2.7.2 has Incorrect Access Control.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.0133 · Published 2022-02-08 · Partial fix · 2.7.2, 0.24.1 CWE-862
Priority MEDIUM 40
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00742 · Published 2026-07-08 · Fixed in 2.11.17, 2.12.8 CWE-476
Priority MEDIUM 40
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00742 · Published 2026-07-08 · Fixed in 2.12.12, 2.14.3 CWE-400
Priority MEDIUM 40
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00627 · Published 2026-03-25 · Fixed in 2.12.6, 2.11.15 CWE-20
Priority MEDIUM 40
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00684 · Published 2026-03-25 · Fixed in 2.11.14, 2.12.5 CWE-476
Priority LOW 39
NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00446 · Published 2023-10-30 · Partial fix · 2.10.4, 0.4.6 CWE-321
Priority LOW 39
This affects all versions of package github.com/nats-io/nats-server/server.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.03729 · Published 2021-03-07 · Fixed in 2.2.0 CWE-400
Priority LOW 38
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system.
CVSS 3.1HIGH 8.8· Adjacent network · No auth · No interaction · EPSS 0.00368 · Published 2026-07-08 · Fixed in 2.11.16, 2.12.6 CWE-287
Priority LOW 37
The JWT library in NATS nats-server before 2.1.9 allows a denial of service (a nil dereference in Go code).
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.02157 · Published 2020-11-06 · Fixed in 1.1.0 CWE-476
Priority LOW 36
NATS Server 2.x before 2.2.0 and JWT library before 2.0.1 have Incorrect Access Control because Import Token bindings are mishandled.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01448 · Published 2021-03-16 · Fixed in 2.0.1 CWE-755
Priority LOW 36
An integer overflow in NATS Server before 2.0.2 allows a remote attacker to crash the server by sending a crafted request.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01773 · Published 2019-07-29 · Fixed in 2.2.0 CWE-190
Priority LOW 35
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system.
CVSS 3.1HIGH 7.4· Network · No auth · No interaction · EPSS 0.0043 · Published 2026-03-25 · Fixed in 2.11.15, 2.12.6 CWE-215
Priority LOW 34
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.006 · Published 2026-07-08 · Fixed in 2.14.3, 2.12.12 CWE-248
Priority LOW 34
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system.
CVSS 3.1HIGH 7.7· Network · Low privileges · No interaction · EPSS 0.0056 · Published 2026-07-08 · Partial fix · 2.12.12, 2.14.3 CWE-190
Priority LOW 34
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00542 · Published 2026-02-24 · Partial fix · 2.11.12, 2.12.3 CWE-409
Priority LOW 33
NATS nats-server before 2.7.4 allows Directory Traversal (with write access) via an element in a ZIP archive for JetStream streams.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.02342 · Published 2022-03-10 · Fixed in 2.7.4, 0.24.3 CWE-22
Priority LOW 32
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system.
CVSS 3.1HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.00441 · Published 2026-07-08 · Fixed in 2.12.9, 2.14.1 CWE-74
Priority LOW 31
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system.
CVSS 3.1HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.00264 · Published 2026-03-25 · Fixed in 2.11.15, 2.12.6 CWE-863
Priority LOW 30
NATS nats-server before 2.9.23 and 2.10.x before 2.10.2 has an authentication bypass.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.00825 · Published 2023-10-30 · Fixed in 2.9.23, 2.10.2 CWE-863
Priority LOW 29
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.00464 · Published 2026-07-08 · Fixed in 2.11.16, 2.12.7 CWE-285
Priority LOW 29
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system.
CVSS 3.1MEDIUM 6.5· Network · Low privileges · No interaction · EPSS 0.00463 · Published 2026-07-08 · Fixed in 2.11.16, 2.12.7 CWE-285
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