{"id":"CVE-2026-33953","state":"PUBLISHED","title":"LinkAce's SSRF protection can be bypassed via internal hostname resolution in LinkAce","description":"LinkAce is a self-hosted archive to collect website links. Versions prior to 2.5.3 block direct requests to private IP literals, but still performs server-side requests to internal-only resources when those resources are referenced through an internal hostname. This allows an authenticated user to trigger server-side requests to internal services reachable by the LinkAce server but not directly reachable by an external user. Version 2.5.3 patches the issue.","publishedAt":"2026-03-27T21:22:03.963Z","updatedAt":"2026-03-30T15:39:58.365Z","severity":{"score":8.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["Kovah LinkAce"],"affected":[{"vendor":"Kovah","product":"LinkAce","versions":[{"version":"< 2.5.3","status":"affected"}]}],"references":["https://github.com/Kovah/LinkAce/security/advisories/GHSA-wp4g-qw9j-wfjg"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33953.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33953","state":"PUBLISHED","datePublished":"2026-03-27T21:22:03.963Z","dateUpdated":"2026-03-30T15:39:58.365Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-24T19:50:52.106Z"},"containers":{"cna":{"title":"LinkAce's SSRF protection can be bypassed via internal hostname resolution in LinkAce","descriptions":[{"lang":"en","value":"LinkAce is a self-hosted archive to collect website links. Versions prior to 2.5.3 block direct requests to private IP literals, but still performs server-side requests to internal-only resources when those resources are referenced through an internal hostname. This allows an authenticated user to trigger server-side requests to internal services reachable by the LinkAce server but not directly reachable by an external user. Version 2.5.3 patches the issue."}],"affected":[{"vendor":"Kovah","product":"LinkAce","versions":[{"version":"< 2.5.3","status":"affected"}]}],"references":[{"url":"https://github.com/Kovah/LinkAce/security/advisories/GHSA-wp4g-qw9j-wfjg","name":"https://github.com/Kovah/LinkAce/security/advisories/GHSA-wp4g-qw9j-wfjg","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-27T21:22:03.963Z"},"source":{"advisory":"GHSA-wp4g-qw9j-wfjg","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-30T15:39:48.692206Z","id":"CVE-2026-33953","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-30T15:39:58.365Z"}}]}}}