{"schemaVersion":3,"id":"CVE-2026-42503","aliases":["UBUNTU-CVE-2026-42503","DEBIAN-CVE-2026-42503"],"status":"published","duplicateOf":null,"title":null,"description":"gopls by default communicates via pipe. However, -port and -listen flags are supported as means of debugging.\nIf -listen is given a value without an explicit host (e.g. :8080), or -port is used, gopls will listen on 0.0.0.0.\nAs a result, users might inadvertently cause gopls to bind 0.0.0.0.\nThis can allow a malicious party on the same network to execute code arbitrarily via gopls.","dates":{"published":"2026-05-06T16:20:01.428Z","modified":"2026-05-07T03:55:49.730Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · 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to an Unrestricted IP Address","description":"The product assigns the address 0.0.0.0 for a database server, a cloud service/instance, or any computing resource that communicates remotely.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/1327.html"}],"affected":[{"vendor":"debian","product":"gopls","name":"gopls","label":"gopls","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/gopls","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 2:0.22.0+ds-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 2:0.22.0+ds-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"gopls","name":"gopls","label":"gopls","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/gopls","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix 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