{"id":"CVE-2026-34752","state":"PUBLISHED","title":"Haraka affected by DoS via `__proto__` email header","description":"Haraka is a Node.js mail server. Prior to version 3.1.4, sending an email with __proto__: as a header name crashes the Haraka worker process. This issue has been patched in version 3.1.4.","publishedAt":"2026-04-02T18:42:38.367Z","updatedAt":"2026-04-03T15:47:34.494Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["haraka Haraka"],"affected":[{"vendor":"haraka","product":"Haraka","versions":[{"version":"< 3.1.4","status":"affected"}]}],"references":["https://github.com/haraka/Haraka/security/advisories/GHSA-xph3-r2jf-4vp3","https://github.com/haraka/Haraka/releases/tag/v3.1.4"],"weaknesses":["CWE-248"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/34xxx/CVE-2026-34752.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-34752","state":"PUBLISHED","datePublished":"2026-04-02T18:42:38.367Z","dateUpdated":"2026-04-03T15:47:34.494Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-30T19:17:10.225Z"},"containers":{"cna":{"title":"Haraka affected by DoS via `__proto__` email header","descriptions":[{"lang":"en","value":"Haraka is a Node.js mail server. Prior to version 3.1.4, sending an email with __proto__: as a header name crashes the Haraka worker process. This issue has been patched in version 3.1.4."}],"affected":[{"vendor":"haraka","product":"Haraka","versions":[{"version":"< 3.1.4","status":"affected"}]}],"references":[{"url":"https://github.com/haraka/Haraka/security/advisories/GHSA-xph3-r2jf-4vp3","name":"https://github.com/haraka/Haraka/security/advisories/GHSA-xph3-r2jf-4vp3","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.4","name":"https://github.com/haraka/Haraka/releases/tag/v3.1.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-248","lang":"en","description":"CWE-248: Uncaught Exception","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-02T18:42:38.367Z"},"source":{"advisory":"GHSA-xph3-r2jf-4vp3","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-03T15:47:22.511467Z","id":"CVE-2026-34752","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-03T15:47:34.494Z"}}]}}}