CVE Explorer
CVE-2026-27810
calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, an HTTP Response Header Injection vulnerability in the calibre Content Server allows any authenticated user to inject arbitrary HTTP headers into server responses via an unsanitized `content_disposition` query parameter in the `/get/` and `/data-files/get/` endpoints. All users running the calibre Content Server with authentication enabled are affected. The vulnerability i
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":"< 9.4.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:47722b2d7d91d151a80e71ae563099b7ba608bc73b0f06ea482736214b949c41 · sha256:e5333774704cb444… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:47722b2d7d91d151a80e71ae563099b7ba608bc73b0f06ea482736214b949c41 · sha256:e5333774704cb444… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-113","description":"CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:47722b2d7d91d151a80e71ae563099b7ba608bc73b0f06ea482736214b949c41 · sha256:e5333774704cb444… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-5fpj-fxw7-8grw","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-5fpj-fxw7-8grw"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:47722b2d7d91d151a80e71ae563099b7ba608bc73b0f06ea482736214b949c41 · sha256:e5333774704cb444… · /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.