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How to verify CVE-2020-26258

Confirm whether your systems are actually affected — run the exact detection check below (Nuclei command or OpenVAS NVT). Detection only; it does not exploit.

How to verify this vulnerability

Scanner data tells you how to confirm whether your systems are actually affected — not just that the CVE exists. Run a Nuclei template against your target for a yes/no answer in seconds.

What's a Nuclei template? Nuclei is a free, open-source scanner. A template is a small YAML rule that probes a target and reports whether it's vulnerable. Runs locally, no agent.
1 · AUTOMATEDDetection command
nuclei -id CVE-2020-26258 -u https://your-target -rl 50 -timeout 10

Runs against your own host. Don't have Nuclei? Install guide ↗

1 Nuclei template
  • highOfficialhttpXStream <1.4.15 - Server-Side Request ForgeryGitHub ↗
  • highCommunityhttpXStream <1.4.15 - Server-Side Request ForgeryGitHub ↗

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Nuclei References

Verify with OpenVAS

Greenbone/OpenVAS ships 18 NVT checks for CVE-2020-26258. OpenVAS detects this CVE by NVT OID — enable the NVT in your scan config, or confirm it is in your feed with the query below.

Confirm the NVT is in your feed (GMP)
gvm-cli socket --xml "<get_nvts nvt_oid='1.3.6.1.4.1.25623.1.0.125662' details='1'/>"
NVT OIDs (18)
  • 1.3.6.1.4.1.25623.1.0.125662since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.704828since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.819019since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.819034since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.819069since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.844807since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.844937since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853702since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.892507since 2026-06-25
  • 1.3.6.1.4.1.25623.1.1.1.1.2021.4828since 2026-06-25

+ 8 more NVTs

New to OpenVAS? Greenbone documentation ↗
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