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CVE-2026-11859

An HTML injection vulnerability in the "fetch links" email sent by Thinkst Applied Research Canarytokens, enabling Interface Manipulation, Cross-Site Scripting (XSS) in emails clients that render HTML emails. This issue affects Canarytokens: from Docker tag sha-c0f3cf142 before sha-08c3f93d, from Git commit c0f3cf142 before 08c3f93d.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9b1e75bb195c9284c5c11b080aeb3d0a2baf878ba1cc4d46cde9d16ce46f22f0
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Canarytokens","vendor":"Thinkst Applied Research","versions":[{"lessThan":"sha-08c3f93d","status":"affected","version":"sha-c0f3cf142","versionType":"custom"},{"lessThan":"08c3f93d","status":"affected","version":"c0f3cf142","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9ab126416e758d33c73dc45e8832af98159e705ad395a494d586059cf788acc2 · sha256:b9d369677ace70d6… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NO","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":2,"baseSeverity":"LOW","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","providerUrgency":"GREEN","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P/AU:N/RE:L/U:Green","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialit…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:9ab126416e758d33c73dc45e8832af98159e705ad395a494d586059cf788acc2 · sha256:b9d369677ace70d6… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-74","description":"CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9ab126416e758d33c73dc45e8832af98159e705ad395a494d586059cf788acc2 · sha256:b9d369677ace70d6… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://github.com/thinkst/canarytokens/security/advisories/GHSA-55jf-cqr9-r7p4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9ab126416e758d33c73dc45e8832af98159e705ad395a494d586059cf788acc2 · sha256:b9d369677ace70d6… · /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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