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Vulnerability details: VCID-vq4p-dvg4-eudz
Vulnerability ID VCID-vq4p-dvg4-eudz
Aliases CVE-2026-25636
Summary calibre: Calibre: Arbitrary file corruption via path traversal in EPUB conversion
Status Published
Exploitability 0.5
Weighted Severity 7.4
Risk 3.7
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73 External Control of File Name or Path
CWE-94 Improper Control of Generation of Code ('Code Injection')
System Score Found at
cvssv3 8.2 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25636.json
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-25636
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-25636
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-25636
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-25636
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-25636
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-25636
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-25636
epss 0.00022 https://api.first.org/data/v1/epss?cve=CVE-2026-25636
cvssv3.1 8.2 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 8.2 https://github.com/kovidgoyal/calibre/commit/9484ea82c6ab226c18e6ca5aa000fa16de598726
ssvc Track https://github.com/kovidgoyal/calibre/commit/9484ea82c6ab226c18e6ca5aa000fa16de598726
cvssv3.1 8.2 https://github.com/kovidgoyal/calibre/security/advisories/GHSA-8r26-m7j5-hm29
ssvc Track https://github.com/kovidgoyal/calibre/security/advisories/GHSA-8r26-m7j5-hm29
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25636.json
https://api.first.org/data/v1/epss?cve=CVE-2026-25636
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-25636
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2437730 https://bugzilla.redhat.com/show_bug.cgi?id=2437730
9484ea82c6ab226c18e6ca5aa000fa16de598726 https://github.com/kovidgoyal/calibre/commit/9484ea82c6ab226c18e6ca5aa000fa16de598726
GHSA-8r26-m7j5-hm29 https://github.com/kovidgoyal/calibre/security/advisories/GHSA-8r26-m7j5-hm29
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25636.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H Found at https://github.com/kovidgoyal/calibre/commit/9484ea82c6ab226c18e6ca5aa000fa16de598726
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-09T15:19:25Z/ Found at https://github.com/kovidgoyal/calibre/commit/9484ea82c6ab226c18e6ca5aa000fa16de598726
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H Found at https://github.com/kovidgoyal/calibre/security/advisories/GHSA-8r26-m7j5-hm29
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-09T15:19:25Z/ Found at https://github.com/kovidgoyal/calibre/security/advisories/GHSA-8r26-m7j5-hm29
Exploit Prediction Scoring System (EPSS)
Percentile 0.05948
EPSS Score 0.00022
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:31:32.964381+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-25636.json 38.0.0