# 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.

- Web page: https://patchblox.com/security/cve/CVE-2026-53499
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 21, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | fort-validator Debian 13.5 (trixie) | 1.6.8-0+deb13u1 | [DEBIAN-CVE-2026-53499](https://patchblox.com/security/data/fix/linux/debian-cve-2026-53499.md) | Aug 22, 2026 |
| Linux | fort-validator Debian 14 | 1.6.8-1 | [DEBIAN-CVE-2026-53499](https://patchblox.com/security/data/fix/linux/debian-cve-2026-53499.md) | Aug 22, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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