What is Citrix NetScaler CVE-2026-3055?

Two memory overread bugs in SAML endpoints, leaking admin tokens via cookies. Unauth. Exploited.

How do I check if my NetScaler has CVE-2026-3055?

Grep config for "add authentication samlIdPProfile." Versions below fixes? Vulnerable.

Is CVE-2026-3055 actively exploited?

Yes — honeypots caught it days post-disclosure. CISA KEV. Metasploit ready. Patch yesterday.

Citrix NetScaler's CVE-2026-3055: Memory Leaks Deja Vu, Now With Exploitation

Slack lit up last Wednesday: clients freaking over Citrix NetScaler CVE-2026-3055. Memory overreads dumping session tokens—hackers are already inside.

DevTools Feed Apr 03, 2026 3 min read 11 views

⚡ Key Takeaways

CVE-2026-3055 covers two memory overreads in NetScaler SAML, leaking admin tokens—actively exploited. 𝕏
Patch to specified versions immediately; disable SAML IdP as interim if desperate. 𝕏
Citrix downplayed it initially, echoing CitrixBleed—disingenuous disclosure risks trust. 𝕏

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#CVE-2026-3055 #Citrix NetScaler #SAML vulnerability #memory overread

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Originally reported by dev.to

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