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12 May 2026

Vulnerabilities first published on this day (UTC), newest first.

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  • Critical 9.0
    CVE-2026-41901 Exploited Public exploit

    Thymeleaf: Improper recognition of unauthorized syntax patterns in sandboxed Thymeleaf expressions

    Thymeleaf is a server-side Java template engine for web and standalone environments. Prior to 3.1.5.RELEASE, a security bypass vulnerability exists in the expression execution mechanisms of Thymeleaf. Although the library provides mechanisms to avoid the exec…

  • Critical 9.6
    CVE-2026-45321 Exploited · Ransomware Public exploit

    Malware in 42 @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys

    On 2026-05-11, between approximately 19:20 and 19:26 UTC, 84 malicious versions across 42 @tanstack/* packages were published to the npm registry. The publishes were authenticated via the legitimate GitHub Actions OIDC trusted-publisher binding for TanStack/r…

    KEV May 27, 2026