CVE-2026-53499

fort-validator: FORT Validator is a Resource Public Key Infrastructure (RPKI) relying-party validator that produces validated route-o...

CVE-2026-53499 is fixed in fort-validator on 1 platform, first by DEBIAN-CVE-2026-53499, released August 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0020
9th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
fort-validator · Debian 13.5 (trixie) 1.6.8-0+deb13u1 DEBIAN-CVE-2026-53499 Aug 22, 2026
fort-validator · Debian 14 1.6.8-1 DEBIAN-CVE-2026-53499 Aug 22, 2026

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