CVE-2026-33487
7.5 · HIGHOverview
CVE-2026-33487 is a high-severity vulnerability affecting goxmldsig_project goxmldsig. It was published on March 26, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
goxmlsig provides XML Digital Signatures implemented in Go. Prior to version 1.6.0, the `validateSignature` function in `validate.go` goes through the references in the `SignedInfo` block to find one that matches the signed element's ID. In Go versions before 1.22, or when `go.mod` uses an older version, there is a loop variable capture issue. The code takes the address of the loop variable `_ref` instead of its value. As a result, if more than one reference matches the ID or if the loop logic is incorrect, the `ref` pointer will always end up pointing to the last element in the `SignedInfo.References` slice after the loop. goxmlsig version 1.6.0 contains a patch.
Remediation
Check the references section for vendor advisories and patches from goxmldsig_project. Update goxmldsig to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| goxmldsig_project | goxmldsig | >= 0, < 1.6.0 | Affected |
References
Frequently Asked Questions
What is CVE-2026-33487?
CVE-2026-33487 is a high-severity vulnerability affecting goxmldsig_project goxmldsig. It was published on March 26, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-33487?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-33487?
Check the references section for vendor advisories and patches from goxmldsig_project. Update goxmldsig to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-33487?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-33487 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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