{"apiVersion":"1.0","identifier":"CVE-2026-53499","description":"FORT Validator is a Resource Public Key Infrastructure (RPKI) relying-party validator that produces validated route-origin data. FORT Validator versions through 1.6.7 contain an origin-validation error in their RRDP processing: a delegated CA under the same Trust Anchor Locator (TAL) can reference a victim CA-s public RRDP notification and snapshot URLs, causing FORT-s URL-based download cache to report success after deleting the victim-s local snapshot. Following a routine victim publication, this can silently remove the victim-s VRPs and other signed objects from FORT-s output, potentially enabling route hijacking or loss of reachability. Version 1.6.8 contains a patch that rejects cross-origin RRDP snapshot and delta URLs; as a workaround, administrators can disable HTTP/RRDP with --http.enabled=false while keeping rsync enabled, although this can leave data unavailable or stale where rsync is not supported.","publishedAt":"2026-08-21T23:16:26","lastModifiedAt":"2026-08-25T20:16:56","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-53499","cvssScore":7.2,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:H/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","epssProbability":0.00158,"riskScore":0.73,"affectedProduct":"FORT Validator","affectedVersions":"<=1.6.7","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-53499","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-53499","en":"https://www.redsauce.net/en/cves/CVE-2026-53499","fr":"https://www.redsauce.net/fr/cves/CVE-2026-53499","pt":"https://www.redsauce.net/pt/cves/CVE-2026-53499","de":"https://www.redsauce.net/de/cves/CVE-2026-53499","sk":"https://www.redsauce.net/sk/cves/CVE-2026-53499","el":"https://www.redsauce.net/el/cves/CVE-2026-53499"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-53499"}}