{"id":"CVE-2026-45254","state":"PUBLISHED","title":"Incorrect libcap_net limitation list manipulation","description":"In the case of the cap_net service, when a key present in the old limit was omitted from the new limit, the missing key was treated as \"allow any\" instead of being rejected.\n\nIn certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit that extended the permissions of the process.","publishedAt":"2026-05-21T09:34:37.541Z","updatedAt":"2026-05-21T14:37:03.795Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"freebsd","products":["FreeBSD FreeBSD"],"affected":[{"vendor":"FreeBSD","product":"FreeBSD","defaultStatus":"unknown","versions":[{"version":"15.0-RELEASE","status":"affected","lessThan":"p9","versionType":"release"},{"version":"14.4-RELEASE","status":"affected","lessThan":"p5","versionType":"release"},{"version":"14.3-RELEASE","status":"affected","lessThan":"p14","versionType":"release"}],"modules":["libcap_net"]}],"references":["https://security.freebsd.org/advisories/FreeBSD-SA-26:24.cap_net.asc"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45254.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45254","state":"PUBLISHED","datePublished":"2026-05-21T09:34:37.541Z","dateUpdated":"2026-05-21T14:37:03.795Z","assignerShortName":"freebsd","assignerOrgId":"63664ac6-956c-4cba-a5d0-f46076e16109","dateReserved":"2026-05-11T16:27:44.891Z"},"containers":{"cna":{"title":"Incorrect libcap_net limitation list manipulation","descriptions":[{"lang":"en","value":"In the case of the cap_net service, when a key present in the old limit was omitted from the new limit, the missing key was treated as \"allow any\" instead of being rejected.\n\nIn certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit that extended the permissions of the process."}],"affected":[{"vendor":"FreeBSD","product":"FreeBSD","defaultStatus":"unknown","versions":[{"version":"15.0-RELEASE","status":"affected","lessThan":"p9","versionType":"release"},{"version":"14.4-RELEASE","status":"affected","lessThan":"p5","versionType":"release"},{"version":"14.3-RELEASE","status":"affected","lessThan":"p14","versionType":"release"}],"modules":["libcap_net"]}],"references":[{"url":"https://security.freebsd.org/advisories/FreeBSD-SA-26:24.cap_net.asc","tags":["vendor-advisory"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"freebsd","orgId":"63664ac6-956c-4cba-a5d0-f46076e16109","dateUpdated":"2026-05-21T09:34:37.541Z"},"datePublic":"2026-05-20T23:00:00.000Z","credits":[{"lang":"en","type":"finder","value":"Joshua Rogers of AISLE Research Team"}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-21T14:35:55.800907Z","id":"CVE-2026-45254","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-21T14:37:03.795Z"}}]}}}