Improper Validation of Array Index Affecting github.com/russellhaering/gosaml2 package, versions <0.11.0
Threat Intelligence
Exploit Maturity
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Proof of Concept
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- published19 Mar 2026
- disclosed18 Mar 2026
- creditxclow3n
Introduced: 18 Mar 2026
CVE NOT AVAILABLE CWE-129 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade github.com/russellhaering/gosaml2 to version 0.11.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Array Index via the DecryptBytes() function. An attacker can cause the process or goroutine to crash by sending a crafted AES-CBC encrypted assertion with a plaintext of all zero bytes, which triggers a panic due to an out-of-range index access.
Note:
This is only exploitable if the service provider is configured with SPKeyStore to support encrypted assertions.