CVE-2026-59324 is a cross-request message context handling flaw in Spring Integration flows that use .fluxTransform() with an asynchronous or reordering fluxFunction that emits raw payloads. Under concurrent processing on the same FluxMessageChannel subscription, reply-related headers such as replyChannel, errorChannel, correlation identifiers, and propagated security or tenant context can be taken from the most recently consumed upstream message rather than the message actually associated with the emitted payload. This creates a race condition in shared request state handling, causing message metadata to be applied to the wrong response. The result is cross-message header leakage and reply misrouting between concurrent requests.
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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.
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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.
3 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.