Is there a public exploit for CVE-2026-84987?

No public exploit for CVE-2026-84987 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-84987?

CVE-2026-84987 scores CVSS 5.4 (v3.1), rated medium.

What does CVE-2026-84987 affect?

CVE-2026-84987 affects code16/sharp.

5.4 Medium

code16/sharp: Server-side request forgery through an unanchored autocomplete endpoint check

CVE-2026-84987

Impact An authenticated attacker can call the Autocomplete API with the configured endpoint as a substring to request another server-side route. Patches The problem has been patched in 9.23.0 and pre-release version 10.0.0-beta.4. The regex verifying the endpoint has been anchored to forbid substring injection. Workarounds Use SharpFormAutocompleteRemoteField::setRemoteCallback() instead of SharpFormAutocompleteRemoteField::setRemoteEndpoint().

Assessment

CVSS: 5.4 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 12 November 2026
Last updated: 12 November 2026
Affected: code16/sharp
Weakness: CWE-625, CWE-918

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

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