CVE-2026-86055
Part-DB: Password Reset Link Poisoning via Host Header Injection leads to pre-authentication Account Takeover
High 8.7
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.
GitHub_M
2026-10-23
2026-10-23
2026-09-04
Scores
| Source | CVSS | Score | Severity | Vector |
|---|---|---|---|---|
| GitHub_M | 4.0 | 8.7 | High | 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 |
Weaknesses
Affected
| Vendor | Product | Versions |
|---|---|---|
| Part-DB | Part-DB-server | < 2.13.3 (affected) |
References
- https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-m9rf-69wp-c56r x_refsource_CONFIRM
- https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.3 x_refsource_MISC
Full CVE JSON record (5.2)
{
"containers": {
"cna": {
"affected": [
{
"product": "Part-DB-server",
"vendor": "Part-DB",
"versions": [
{
"status": "affected",
"version": "\u003c 2.13.3"
}
]
}
],
"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."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"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",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-640",
"description": "CWE-640: Weak Password Recovery Mechanism for Forgotten Password",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-23T04:09:27.051Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"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/security/advisories/GHSA-m9rf-69wp-c56r"
},
{
"name": "https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.3"
}
],
"source": {
"advisory": "GHSA-m9rf-69wp-c56r",
"discovery": "UNKNOWN"
},
"title": "Part-DB: Password Reset Link Poisoning via Host Header Injection leads to pre-authentication Account Takeover"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-86055",
"datePublished": "2026-10-23T04:09:27.051Z",
"dateReserved": "2026-09-04T19:29:21.059Z",
"dateUpdated": "2026-10-23T04:09:27.051Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}