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CVE-2026-54359

MISP contains an insecure default configuration in which the Security.check_sec_fetch_site_header control is disabled. When this setting is disabled, state-changing requests such as POST, PUT, or AJAX requests are not restricted based on the browser-provided Sec-Fetch-Site header. A remote unauthenticated attacker could craft a malicious web page that causes an authenticated MISP user’s browser to issue cross-site requests to MISP automation endpoints. If successful, the forged requests may be p
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7d7a0dd90a15a18f3ed9496dee738f136464b5f89c31c9621938acc6e20f44a5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-1188","description":"CWE-1188 Insecure Default Initialization of Resource","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc4e68bc96c69b94869ec1f05f556ad190e6e734c717af9d67701fde659515b2 · sha256:316c96169baa1a83… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-352","description":"CWE-352 Cross-Site Request Forgery (CSRF)","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc4e68bc96c69b94869ec1f05f556ad190e6e734c717af9d67701fde659515b2 · sha256:316c96169baa1a83… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"misp","repo":"https://github.com/misp/misp","vendor":"misp","versions":[{"lessThan":"2.5.40","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc4e68bc96c69b94869ec1f05f556ad190e6e734c717af9d67701fde659515b2 · sha256:316c96169baa1a83… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"H…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bc4e68bc96c69b94869ec1f05f556ad190e6e734c717af9d67701fde659515b2 · sha256:316c96169baa1a83… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-1188","description":"CWE-1188 Insecure Default Initialization of Resource","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc4e68bc96c69b94869ec1f05f556ad190e6e734c717af9d67701fde659515b2 · sha256:316c96169baa1a83… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-352","description":"CWE-352 Cross-Site Request Forgery (CSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bc4e68bc96c69b94869ec1f05f556ad190e6e734c717af9d67701fde659515b2 · sha256:316c96169baa1a83… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["patch"],"url":"https://github.com/MISP/MISP/commit/b82db1bcaa550689c05e1ed175e81f25a8d97b91"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc4e68bc96c69b94869ec1f05f556ad190e6e734c717af9d67701fde659515b2 · sha256:316c96169baa1a83… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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