Loading vulnerability…
CVE-2026-58252 is an authorization flaw in NATS Server affecting versions prior to 2.14.0, 2.12.7, and 2.11.16. An authenticated user can receive messages on subjects that should be denied when a wildcard subscription overlaps with a configured wildcard deny rule but is not a strict subset of that deny rule. The flaw also affects queue subscription behavior, where the incorrect handling of overlapping wildcard authorization rules can influence message delivery to legitimate queue consumers. The vulnerability results from improper enforcement of subject-based access restrictions in the presence of wildcard matching logic.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
9 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.