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CVE-2026-22732 is a vulnerability in Spring Security affecting servlet-based applications that rely on Spring Security to write configured HTTP response headers using the default lazy header-writing behavior. Under certain conditions, the framework may fail to emit the configured security headers in the HTTP response. Affected versions are Spring Security 5.7.0 through 5.7.21, 5.8.0 through 5.8.23, 6.3.0 through 6.3.14, 6.4.0 through 6.4.14, 6.5.0 through 6.5.8, and 7.0.0 through 7.0.3. The flaw weakens browser-enforced protections that depend on those headers being present, including controls related to caching and other client-side security behavior.
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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 valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
25 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
One of several critical SAP NetWeaver vulnerabilities that can expose environments to unauthorized access, memory corruption, data exposure, or service disruption.
A Spring Security HTTP caching vulnerability mentioned as background vendor security history.
A Spring Security vulnerability involving authorization bypass via caching mechanisms.
A Spring Security vulnerability mentioned only as broader ecosystem background; described here as caching issues.
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.