{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-20T10:52:04.763","vulnerabilities":[{"cve":{"id":"CVE-2026-24401","sourceIdentifier":"security-advisories@github.com","published":"2026-01-24T02:15:48.760","lastModified":"2026-02-12T15:58:27.273","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions 0.9rc2 and below, avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record, where the alias and canonical name point to the same domain (e.g., \"h.local\" as a CNAME for \"h.local\"). This causes unbounded recursion in the lookup_handle_cname function, leading to stack exhaustion. The vulnerability affects record browsers where AVAHI_LOOKUP_USE_MULTICAST is set explicitly, which includes record browsers created by resolvers used by nss-mdns. This issue is patched in commit 78eab31128479f06e30beb8c1cbf99dd921e2524."},{"lang":"es","value":"Avahi es un sistema que facilita el descubrimiento de servicios en una red local a través de la suite de protocolos mDNS/DNS-SD. En las versiones 0.9rc2 e inferiores, avahi-daemon puede ser bloqueado mediante un fallo de segmentación al enviar una respuesta mDNS no solicitada que contenga un registro CNAME recursivo, donde el alias y el nombre canónico apuntan al mismo dominio (por ejemplo, 'h.local' como CNAME para 'h.local'). Esto causa una recursión ilimitada en la función lookup_handle_cname, lo que lleva al agotamiento de la pila. La vulnerabilidad afecta a los navegadores de registros donde AVAHI_LOOKUP_USE_MULTICAST está configurado explícitamente, lo que incluye los navegadores de registros creados por los resolvedores utilizados por nss-mdns. Este problema está parcheado en el commit 78eab31128479f06e30beb8c1cbf99dd921e2524."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-674"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:avahi:avahi:*:*:*:*:*:*:*:*","versionEndExcluding":"0.9","matchCriteriaId":"6481267F-934F-4A0C-9B25-59738E798458"},{"vulnerable":true,"criteria":"cpe:2.3:a:avahi:avahi:0.9:rc1:*:*:*:*:*:*","matchCriteriaId":"76971590-AEED-4CB1-B7B7-45EA8FD11524"},{"vulnerable":true,"criteria":"cpe:2.3:a:avahi:avahi:0.9:rc2:*:*:*:*:*:*","matchCriteriaId":"83D94AE4-46AC-4955-BB0D-193CF79149A1"}]}]}],"references":[{"url":"https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/avahi/avahi/issues/501","source":"security-advisories@github.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/avahi/avahi/security/advisories/GHSA-h4vp-5m8j-f6w3","source":"security-advisories@github.com","tags":["Vendor Advisory"]}]}}]}