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CVE-2026-33206

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a path traversal vulnerability exists in Calibre' handling of images in Markdown and other similar text-based files allowing an attacker to include arbitrary files from the file system into the converted book. Additionally, missing authentication and server-side request forgery in the background-image endpoint in the ebook reader web view allow the files to be exfiltrated
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ebadc8b8909f82439a614c2e2b8fd7e16e21b39082e3ba833ca1bc12f166253a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"calibre","vendor":"kovidgoyal","versions":[{"status":"affected","version":"< 9.6.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6823d930d43d6bb7c7803467efdcd952a2865d2e02fb050fc5ef71d2c168fbdc · sha256:a778c5cd23c40f59… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6823d930d43d6bb7c7803467efdcd952a2865d2e02fb050fc5ef71d2c168fbdc · sha256:a778c5cd23c40f59… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-23","description":"CWE-23: Relative Path Traversal","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6823d930d43d6bb7c7803467efdcd952a2865d2e02fb050fc5ef71d2c168fbdc · sha256:a778c5cd23c40f59… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-h3p4-m74f-43g6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-h3p4-m74f-43g6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6823d930d43d6bb7c7803467efdcd952a2865d2e02fb050fc5ef71d2c168fbdc · sha256:a778c5cd23c40f59… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-h3p4-m74f-43g6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6823d930d43d6bb7c7803467efdcd952a2865d2e02fb050fc5ef71d2c168fbdc · sha256:a778c5cd23c40f59… · /containers/adp/0/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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