DSA-6490-1 fort-validator - security update
Qi Wang and Jianjun Chen discovered that FORT validator, a RPKI validation service, performed incomplete validation of RRDP notifications, which could result in denial of service via cache poisoning. For additional details please refer to the upstream advisory at https://github.com/NICMx/FORT-validator/security/advisories/GHSA-qfm3-577x-rh54 https://security-tracker.debian.org/tracker/DSA-6490-1
Details
Original advisory: https://lists.debian.org/debian-security-announce/2026/msg00401.html
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-534990.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-53499 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
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