Advisory record · EEF-CVE-2026-77972

safeurl validated address is not bound to the request, allowing DNS rebinding

CVSS 9.0 CriticalCriticalEPSS 0.0033 · 26th percentile

Critical, because:

  • CVSS score 9.0: 9.0 or more.

How we decide what’s critical

Published by OSV at 15 Sept 2026, 15:37 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
safeurlHex>=0.1.0No fixed version yet
Identifiers
EEF-CVE-2026-77972 · CVE-2026-77972
Weakness (CWE)
CWE-367
Published
15 Sept 2026
Updated
15 Sept 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.0 Critical 4.0 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N CNA (EEF)
  • CISA KEV Not listed.
  • EPSS 0.0033, the 26th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:25 UTC First seen by agentprime
  2. 31 Oct 2026, 15:25 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.