Loading vulnerability…
CVE-2026-58045 is a reachable-assertion flaw in Node.js synchronous node:zlib APIs. A spoofed TypedArray byteLength can cause an assertion to be triggered, terminating the entire Node.js process. All 11 synchronous zlib functions are affected in Node.js 22.x, 24.x, and 26.x.
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.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Node.js vulnerability included in the Alpine nodejs-current 26.5.1-r0 security update; no technical details are provided.
A Node.js zlib API vulnerability that can cause crashes when a spoofed TypedArray byte length is supplied to synchronous compression APIs.
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.