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CVE-2026-41842 is an uncontrolled resource-consumption vulnerability in the static-resource resolution layer shared by Spring MVC and Spring WebFlux. In affected applications, VersionResourceResolver can perform pathologically slow filesystem resolution for crafted requests targeting versioned static resources. Each request can retain an HTTP connection while resolution completes, allowing concurrent malicious requests to exhaust the application’s available HTTP connection pool. Affected Spring Framework versions are 7.0.0 through 7.0.7, 6.2.0 through 6.2.18, 6.1.0 through 6.1.27, and 5.3.0 through 5.3.48; unsupported versions are also affected.
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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.
17 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Unknown.
A Spring Framework denial-of-service vulnerability mentioned as background vendor security history.
A Spring Framework vulnerability mentioned only as background; described here as a denial-of-service issue via static resource resolution.
A denial-of-service vulnerability in handling versioned web assets that allows slow requests to tie up server connections.
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.