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CVE-2023-34034 is an access control bypass vulnerability in Spring Security for WebFlux applications. When "**" is used as a pattern in Spring Security configuration, a mismatch can occur between how Spring Security evaluates the pattern and how Spring WebFlux resolves request paths. This discrepancy can cause authorization rules to be applied differently than intended, allowing requests that should have been restricted to match a less restrictive rule path and bypass security enforcement. The issue affects applications that rely on vulnerable Spring Security WebFlux pattern handling for authorization decisions.
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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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical vulnerability patched in Oracle Financial Services Applications that can lead to remote code execution.
A vulnerability referenced as affecting Spring WebFlux / Spring Security (details not provided in the content).
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.