{"id":"CVE-2026-3119","state":"PUBLISHED","title":"Authenticated query containing a TKEY record may cause named to terminate unexpectedly","description":"Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration.\nThis issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.\nBIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.","publishedAt":"2026-03-25T13:31:54.806Z","updatedAt":"2026-03-25T14:13:54.588Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"isc"},"assigner":"isc","products":["ISC BIND 9"],"affected":[{"vendor":"ISC","product":"BIND 9","defaultStatus":"unaffected","versions":[{"version":"9.20.0","status":"affected","lessThanOrEqual":"9.20.20","versionType":"custom"},{"version":"9.21.0","status":"affected","lessThanOrEqual":"9.21.19","versionType":"custom"},{"version":"9.20.9-S1","status":"affected","lessThanOrEqual":"9.20.20-S1","versionType":"custom"},{"version":"9.18.0","status":"unaffected","lessThanOrEqual":"9.18.46","versionType":"custom"},{"version":"9.18.11-S1","status":"unaffected","lessThanOrEqual":"9.18.46-S1","versionType":"custom"}]}],"references":["https://kb.isc.org/docs/cve-2026-3119","https://downloads.isc.org/isc/bind9/9.20.21","https://downloads.isc.org/isc/bind9/9.21.20"],"weaknesses":["CWE-617"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3119.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3119","state":"PUBLISHED","datePublished":"2026-03-25T13:31:54.806Z","dateUpdated":"2026-03-25T14:13:54.588Z","assignerShortName":"isc","assignerOrgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateReserved":"2026-02-24T12:29:14.561Z"},"containers":{"cna":{"title":"Authenticated query containing a TKEY record may cause named to terminate unexpectedly","descriptions":[{"lang":"en","value":"Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration.\nThis issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.\nBIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected."}],"affected":[{"vendor":"ISC","product":"BIND 9","defaultStatus":"unaffected","versions":[{"version":"9.20.0","status":"affected","lessThanOrEqual":"9.20.20","versionType":"custom"},{"version":"9.21.0","status":"affected","lessThanOrEqual":"9.21.19","versionType":"custom"},{"version":"9.20.9-S1","status":"affected","lessThanOrEqual":"9.20.20-S1","versionType":"custom"},{"version":"9.18.0","status":"unaffected","lessThanOrEqual":"9.18.46","versionType":"custom"},{"version":"9.18.11-S1","status":"unaffected","lessThanOrEqual":"9.18.46-S1","versionType":"custom"}]}],"references":[{"url":"https://kb.isc.org/docs/cve-2026-3119","name":"CVE-2026-3119","tags":["vendor-advisory"]},{"url":"https://downloads.isc.org/isc/bind9/9.20.21","tags":["patch"]},{"url":"https://downloads.isc.org/isc/bind9/9.21.20","tags":["patch"]}],"metrics":[{"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-617","lang":"en","type":"CWE","description":"CWE-617 Reachable Assertion"}]}],"providerMetadata":{"shortName":"isc","orgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateUpdated":"2026-03-25T13:31:54.806Z"},"datePublic":"2026-03-25T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","versionStartIncluding":"9.20.0","versionEndIncluding":"9.20.20"},{"vulnerable":true,"criteria":"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","versionStartIncluding":"9.21.0","versionEndIncluding":"9.21.19"},{"vulnerable":true,"criteria":"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","versionStartIncluding":"9.20.9-S1","versionEndIncluding":"9.20.20-S1"},{"vulnerable":false,"criteria":"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","versionStartIncluding":"9.18.0","versionEndIncluding":"9.18.46"},{"vulnerable":false,"criteria":"cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*","versionStartIncluding":"9.18.11-S1","versionEndIncluding":"9.18.46-S1"}]}]}],"impacts":[{"descriptions":[{"lang":"en","value":"If this situation is encountered, `named` will terminate unexpectedly."}]}],"workarounds":[{"lang":"en","value":"Remove any TSIG keys that might be used by an attacker."}],"exploits":[{"lang":"en","value":"We are not aware of any active exploits."}],"solutions":[{"lang":"en","value":"Upgrade to the patched release most closely related to your current version of BIND 9: 9.20.21, 9.21.20, or 9.20.21-S1."}],"credits":[{"lang":"en","value":"ISC would like to thank Vitaly Simonovich for bringing this vulnerability to our attention."}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-25T14:13:41.579382Z","id":"CVE-2026-3119","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-25T14:13:54.588Z"}}]}}}