CVE-2026-53499

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Source

https://cve.org/CVERecord?id=CVE-2026-53499

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53499.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-53499

Aliases

GHSA-qfm3-577x-rh54

Downstream

DEBIAN-CVE-2026-53499

UBUNTU-CVE-2026-53499

Published

2026-08-21T22:29:48Z

Modified

2026-09-11T03:30:39Z

Severity

7.2 (High) CVSS_V4 - 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 CVSS Calculator

Summary

FORT-validator Vulnerable to RRDP Shared Snapshot Cache Poisoning

Details

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.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-346"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53499.json"
}

References

Affected packages

Git / github.com/nicmx/fort-validator

Affected ranges

Type

GIT

Repo

https://github.com/nicmx/fort-validator

Events

Introduced

Fixed

6716855f1cb2479e709039429e56d51ee3bdca3d

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.6.8"
        },
        {
            "fixed": "1.6.7"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

1.*

1.5.3

1.5.4

1.6.0

1.6.1

1.6.2

1.6.3

1.6.4

1.6.5

1.6.6

1.6.7

v0.*

v0.0.2

v1.*

v1.0.0

v1.1.0

v1.1.1

v1.2.0

v1.2.1

v1.3.0

v1.4.0

v1.5.0

v1.5.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53499.json"