{"answers":{"affected":"4 open source packages ship an affected version, including github.com/nats-io/nats-server/v2 and github.com/nats-io/nats-server. It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-13126 in the wild and no public exploit code.","fix":"Upgrade github.com/nats-io/nats-server/v2 to 2.2.0 or later.","what":"CVE-2019-13126 is a high-severity vulnerability in n/a, published on 29 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-13126 and fix it if it is affected.\n\nWhat it is: CVE-2019-13126 is a high-severity vulnerability in n/a, published on 29 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-13126 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/nats-io/nats-server/v2 (Go): affected all versions; fixed in 2.2.0\n- github.com/nats-io/nats-server/v2 (Go): affected all versions; fixed in 2.2.0\n- github.com/nats-io/nats-server/v2 (Go): affected all versions; fixed in 2.2.0\n- github.com/nats-io/nats-server (Go): affected all versions; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2019-13126/ (Markdown: https://insights.sbomify.com/CVE-2019-13126/index.md)","id":"CVE-2019-13126","markdown":"https://insights.sbomify.com/CVE-2019-13126/index.md","name":"CVE-2019-13126","record":{"aliases":["GHSA-jp4j-47f9-2vc3","GO-2022-0852"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"NATS messaging server","requires_auth":"none","summary":"A remote attacker can crash the NATS server via a crafted request causing an integer overflow, requiring authentication if enabled.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"nats-server","vendor":"linuxfoundation"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"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.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Integer Overflow or Wraparound in NATS Server","id":"CVE-2019-13126","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"integer_overflow","year":"2019"},"n_packages":4,"n_references":2,"next":{"headline":"mxGraph vulnerable to cross-site scripting in color field","id":"CVE-2019-13127"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/nats-io/nats-server","purl":"pkg:golang/github.com/nats-io/nats-server","source":"GO-2022-0852"},{"ecosystem":"Go","fixed":["2.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/nats-io/nats-server/v2","purl":null,"source":"GHSA-jp4j-47f9-2vc3"},{"ecosystem":"Go","fixed":["2.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/nats-io/nats-server/v2","purl":"pkg:golang/github.com/nats-io/nats-server/v2","source":"GHSA-jp4j-47f9-2vc3"},{"ecosystem":"Go","fixed":["2.2.0"],"introduced":["0"],"last_affected":[],"package":"github.com/nats-io/nats-server/v2","purl":"pkg:golang/github.com/nats-io/nats-server/v2","source":"GO-2022-0852"}],"prev":{"headline":"Security feature bypass in n/a","id":"CVE-2019-13125"},"products":["n/a"],"published":"2019-07-29","related":[{"cvss_score":9.8,"headline":"NATS nats-server allows directory traversal via unintended path to a management action","id":"CVE-2022-28357","kev_date_added":null,"published":"2023-09-19"},{"cvss_score":8.8,"headline":"NATS Server: Route API Auth Bypass","id":"CVE-2026-58253","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":8.8,"headline":"Incorrect Authorization in NATS nats-server","id":"CVE-2022-24450","kev_date_added":null,"published":"2022-02-08"},{"cvss_score":8.6,"headline":"NATS has MQTT plaintext password disclosure","id":"CVE-2026-33216","kev_date_added":null,"published":"2026-03-25"},{"cvss_score":7.7,"headline":"NATS Server: Remote crash via integer overflow in Connz pagination","id":"CVE-2026-58207","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":7.5,"headline":"NATS Server: MQTT partial CONNECT packets can exhaust pre-auth memory","id":"CVE-2026-58210","kev_date_added":null,"published":"2026-07-08"},{"cvss_score":7.5,"headline":"NATS Server: Pre-auth server crash via double INFO in leafnode handshake","id":"CVE-2026-58250","kev_date_added":null,"published":"2026-07-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"A remote attacker can crash the NATS server via a crafted request causing an integer overflow, requiring authentication if enabled.","url":"https://insights.sbomify.com/CVE-2019-13126/"}