CVE-2026-18152 is an improper cryptographic-signature-verification vulnerability in IBM Financial Transaction Manager (FTM) for Red Hat OpenShift. Insufficient validation of cryptographic signatures allows a remote attacker to forge messages that FTM accepts as validly signed. Affected versions include FTM 4.0.6.0 through 4.0.10.0, including specified 4.0.6.0 iFix6 builds.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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An improper cryptographic-signature-verification vulnerability in IBM Financial Transaction Manager (FTM) for Red Hat OpenShift that could allow a remote attacker to forge messages that appear validly signed.
Improper verification of cryptographic signatures permits remote forging of validly signed messages in IBM Financial Transaction Manager.
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.