{"id":"CVE-2026-86055","state":"PUBLISHED","title":"Part-DB: Password Reset Link Poisoning via Host Header Injection leads to pre-authentication Account Takeover","description":"Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.3, Part-DB builds the absolute URL of the password-reset link it emails to a user from the client-supplied HTTP Host header, with no trusted-host validation. An unauthenticated attacker who submits a forgot-password request for a known account while sending a spoofed Host header causes Part-DB to email that account a reset link whose hostname is attacker-controlled, while still embedding the genuine reset token. When the victim opens the link (or an automated inbound mail-security scanner dereferences it), the valid token is disclosed to the attacker, who replays it against the real instance to set a new password and take over the account. Because the seeded admin account can be targeted, this yields full pre-authentication administrative account takeover. This issue has been patched in version 2.13.3.","publishedAt":"2026-10-23T04:09:27.051Z","updatedAt":"2026-10-29T12:56:48.256Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["Part-DB Part-DB-server"],"affected":[{"vendor":"Part-DB","product":"Part-DB-server","versions":[{"version":"< 2.13.3","status":"affected"}]}],"references":["https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-m9rf-69wp-c56r","https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.3"],"weaknesses":["CWE-640"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86055.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86055","state":"PUBLISHED","datePublished":"2026-10-23T04:09:27.051Z","dateUpdated":"2026-10-29T12:56:48.256Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-09-04T19:29:21.059Z"},"containers":{"cna":{"title":"Part-DB: Password Reset Link Poisoning via Host Header Injection leads to pre-authentication Account Takeover","descriptions":[{"lang":"en","value":"Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.3, Part-DB builds the absolute URL of the password-reset link it emails to a user from the client-supplied HTTP Host header, with no trusted-host validation. An unauthenticated attacker who submits a forgot-password request for a known account while sending a spoofed Host header causes Part-DB to email that account a reset link whose hostname is attacker-controlled, while still embedding the genuine reset token. When the victim opens the link (or an automated inbound mail-security scanner dereferences it), the valid token is disclosed to the attacker, who replays it against the real instance to set a new password and take over the account. Because the seeded admin account can be targeted, this yields full pre-authentication administrative account takeover. This issue has been patched in version 2.13.3."}],"affected":[{"vendor":"Part-DB","product":"Part-DB-server","versions":[{"version":"< 2.13.3","status":"affected"}]}],"references":[{"url":"https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-m9rf-69wp-c56r","name":"https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-m9rf-69wp-c56r","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.3","name":"https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","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:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-640","lang":"en","description":"CWE-640: Weak Password Recovery Mechanism for Forgotten Password","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-23T04:09:27.051Z"},"source":{"advisory":"GHSA-m9rf-69wp-c56r","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-m9rf-69wp-c56r","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-29T12:52:45.808126Z","id":"CVE-2026-86055","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-29T12:56:48.256Z"}}]}}}