Is there a public exploit for CVE-2026-127046?

No public exploit for CVE-2026-127046 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-2026-127046?

CVE-2026-127046 scores CVSS 9.2 (v4.0), rated critical.

What does CVE-2026-127046 affect?

CVE-2026-127046 affects MISP misp-modules.

9.2 Critical

The MISP Modules website component contains an information disclosure vulnerability in the external tools management interface.

CVE-2026-127046

The MISP Modules website component contains an information disclosure vulnerability in the external tools management interface. The /externaltools/list endpoint returned stored API keys (the apikey field) in its JSON response via the ExternalTools model serializer. Additionally, the browser-based edit form pre-populated the API key input field with the stored credential value, exposing it in the DOM. The /externaltools/list endpoint is accessible without authentication (the regression tests verify the response for both authenticated and unauthenticated clients), meaning any network-reachable client could retrieve the API keys for all configured external tools. These keys are used by the server to authenticate submissions to external analysis or enrichment services, so their disclosure allows an attacker to impersonate the MISP instance or directly access those external services. The vulnerability also affected the edit workflow: the changeconfig endpoint previously required the API key to be present and non-empty on every save, forcing the key to round-trip through the client. The browser JavaScript stored the key in a reactive state object and updated the in-memory tool list with…

Assessment

CVSS: 9.2 (v4.0)
Severity: Critical
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: MISP · misp-modules
Assigner: CIRCL

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

At the source

EUVD (ENISA)

References

Community proofs of concept

No community proof of concept yet. If you have one for a published vulnerability and the right to share it, add it below — it will appear here once reviewed.

Submit a proof of concept

Only for publicly disclosed vulnerabilities, and only material from testing you were authorised to perform. This platform does not buy, sell, or broker exploits — see earning from vulnerability research for legitimate bounty programs. Submissions are reviewed before they appear. Text only; do not include live credentials, personal data, or anything targeting systems you are not permitted to test.

Title *

Proof of concept *

Write-up (optional)

Affected versions (optional)

Name or handle (optional)

References (optional, one URL per line)

Licence for your contribution *

Private contact (optional, never shown)

Before you submit * This vulnerability is already publicly disclosed (it has a published CVE). This material comes only from testing I was authorised to perform. I have the legal right to publish this content and am not breaching any agreement by doing so. It contains no live credentials, personal data, or anything targeting systems I am not authorised to test. I understand it will be reviewed before it appears publicly and may be rejected. I agree to the submission terms.

What is 6 + 3? *

Query this programmatically

Agents can read this through the MCP endpoint, or over HTTP:

curl https://cve.zerocrew.in/api/cve/CVE-2026-127046