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CVE-2021-40438

Server-Side Request Forgery (SSRF) — is CVE-2021-40438real, exploitable, or a false positive? Here's the community ground truth.

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Critical · CVSS 9EPSS 100.0%CISA KEVCWE-918 · Server-Side Request Forgery (SSRF)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

References

NVD MITRE CVE.org CISA KEV

Published

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TruePositive verdict for CVE-2021-40438
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Community ground truth

Community verdict

3 verdicts
Not a real issue

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Community real-world severity: Critical (Critical 3) — CVSS base score 9

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Marco FerriCurated

    Confirmed exploited in the wild — listed in the CISA KEV catalog (added 2021-12-01). Treat as real and prioritize patching over triage.

Related CVEs

Same weakness — CWE-918 · Server-Side Request Forgery (SSRF).