{"affected":[{"defaultStatus":"unaffected","ecosystem":"golang","packageName":"code.vikunja.io/api","product":"vikunja","source":"CNA: VulnCheck","vendor":"go-vikunja","versions":[{"lessThan":"2.7.1","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.7.1","versionType":"semver"}]}],"cveId":"CVE-2026-123502","cwes":["CWE-532"],"description":"Vikunja before 2.7.1 contains an information exposure vulnerability that allows log readers to obtain link-share hashes because the request logger records the raw URI of the /shares/:share/auth route. Attackers with access to Vikunja or reverse proxy access logs can reuse non-expiring, non-password-protected share hashes to obtain a project JWT with read, write or admin permission.","epss":{"date":"2026-11-09","percentile":0.13464,"score":0.00227},"exploits":[],"kev":null,"metrics":[{"score":6.9,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":5.2,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N","version":"3.1"},{"score":6.9,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":5.2,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N","version":"3.1"}],"modifiedAt":1794232901236,"publishedAt":1794101838393,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-ff52-3296-2fvr"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/vikunja-before-2.7.1-link-share-hash-exposure-via-request-path-logging"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-ff52-3296-2fvr"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/vikunja-before-2.7.1-link-share-hash-exposure-via-request-path-logging"}],"remediation":[],"revision":"3c1ceb74ea3cd6cff5953ee4de69d80acf393a523c2ff523bf9b84c8f6fc5444","sources":[{"modifiedAt":1794232901236,"name":"CNA: VulnCheck","retrievedAt":1794233338847,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123502"},{"modifiedAt":1794104198183,"name":"NVD","retrievedAt":1794118558387,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123502"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794237018082,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-123502"}],"ssvc":{"assessedAt":1794232891650,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Vikunja before 2.7.1 Link-Share Hash Exposure via Request Path Logging","updatedAt":1794237018082}