What is OpenSSL CVE-2026-31790?

It's a data leakage vuln in RSASVE key encapsulation where failed encryption checks still return success, leaking uninitialized memory.

Which OpenSSL versions have the data leakage bug?

Versions 3.0 through 3.6 are affected; 1.0.2 and 1.1.1 are fine.

Should I update OpenSSL immediately?

Yes, especially if using RSASVE—patches fix seven vulns total, including DoS and theoretical RCE.

🕳️ Vulnerabilities & CVEs

OpenSSL's Sneaky Data Leak Fix: Uninitialized Memory Spills Secrets

Seven fresh patches for OpenSSL, but one's a doozy: a data leak from sloppy encryption checks. Your apps might be whispering secrets from old memory right now.

theAIcatchup Apr 08, 2026 3 min read

⚡ Key Takeaways

CVE-2026-31790 leaks sensitive data via uninitialized memory in RSASVE key encap—patch versions 3.0-3.6 now. 𝕏
Six low-sev bugs mostly cause DoS; two unlikely code exec paths. 𝕏
High-sev OpenSSL flaws rare in 2025, but data leaks still sting compliance and trust. 𝕏

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#CVE-2026-31790 #OpenSSL vulnerability #RSASVE #data leakage

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Originally reported by SecurityWeek

⚡ Key Takeaways

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