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    CVE-2019-13126

    An integer overflow in NATS Server before 2.0.2 allows a remote attacker to crash the server by sending a crafted request. If authentication is enabled, then the remote attacker must have first authenticated.

    Published:Jul 29, 2019
    Last Modified:Mar 30, 2026
    EPS:Jul 29, 2019
    EPSS Score:0.00678
    CVSS Score:7.5

    Affected Products

    Vendor
    Linuxfoundation
    Product
    Nats-server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

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    CVE-2026-33222 (CVSS 4.9) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi…
    CVE-2026-33247 (CVSS 7.4) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi…
    CVE-2026-33219 (CVSS 5.3) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi…
    CVE-2026-33218 (CVSS 7.5) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi…
    CVE-2026-33246 (CVSS 6.4) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The nats-serve…
    CVE-2026-33217 (CVSS 7.1) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi…
    CVE-2026-33216 (CVSS 8.6) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versi…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High