UBUNTU-CVE-2026-26065

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Source

https://ubuntu.com/security/CVE-2026-26065

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26065.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-26065

Upstream

CVE-2026-26065

Published

2026-02-20T02:16:00Z

Modified

2026-02-27T09:59:13Z

Severity

9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below are vulnerable to Path Traversal through PDB readers (both 132-byte and 202-byte header variants) that allow arbitrary file writes with arbitrary extension and arbitrary content anywhere the user has write permissions. Files are written in 'wb' mode, silently overwriting existing files. This can lead to potential code execution and Denial of Service through file corruption. This issue has been fixed in version 9.3.0.

References

Affected packages

Ubuntu:16.04:LTS

calibre

Package

Name: calibre
Purl: pkg:deb/ubuntu/calibre@2.55.0+dfsg-1ubuntu0.2?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.33.0+dfsg-1build1

2.38.0+dfsg-1

2.45.0+dfsg-1

2.45.0+dfsg-1build1

2.48.0+dfsg-1

2.48.0+dfsg-1build1

2.54.0+dfsg-1

2.55.0+dfsg-1

2.55.0+dfsg-1ubuntu0.2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2.55.0+dfsg-1ubuntu0.2",
            "binary_name": "calibre"
        },
        {
            "binary_version": "2.55.0+dfsg-1ubuntu0.2",
            "binary_name": "calibre-bin"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26065.json"

Ubuntu:18.04:LTS

calibre

Package

Name: calibre
Purl: pkg:deb/ubuntu/calibre@3.21.0+dfsg-1build1?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.7.0+dfsg-2

3.7.0+dfsg-2build1

3.12.0+dfsg-1

3.13.0+dfsg-1

3.14.0+dfsg-1

3.15.0.1+dfsg-1

3.16.0+dfsg-1

3.16.0+dfsg-1build1

3.17.0+dfsg-1

3.17.0+dfsg-2

3.18.0+dfsg-1build1

3.19.0+dfsg-1

3.20.0+dfsg-1

3.21.0+dfsg-1

3.21.0+dfsg-1build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "3.21.0+dfsg-1build1",
            "binary_name": "calibre"
        },
        {
            "binary_version": "3.21.0+dfsg-1build1",
            "binary_name": "calibre-bin"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26065.json"

Ubuntu:20.04:LTS

calibre

Package

Name: calibre
Purl: pkg:deb/ubuntu/calibre@4.99.4+dfsg+really4.12.0-1ubuntu1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.46.0+dfsg-1

4.*

4.2.0+dfsg-2

4.3.0+dfsg-1

4.3.0+dfsg-2

4.4.0+dfsg-1

4.5.0+dfsg-1

4.5.0+dfsg-2

4.5.0+dfsg-3

4.6.0+dfsg-1

4.7.0+dfsg-1

4.99.3+dfsg-2

4.99.4+dfsg-1

4.99.4+dfsg-1build1

4.99.4+dfsg+really4.10.0+py3-2

4.99.4+dfsg+really4.11.2-1

4.99.4+dfsg+really4.11.2-1build1

4.99.4+dfsg+really4.12.0-1

4.99.4+dfsg+really4.12.0-1build1

4.99.4+dfsg+really4.12.0-1ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "4.99.4+dfsg+really4.12.0-1ubuntu1",
            "binary_name": "calibre"
        },
        {
            "binary_version": "4.99.4+dfsg+really4.12.0-1ubuntu1",
            "binary_name": "calibre-bin"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26065.json"

Ubuntu:22.04:LTS

calibre

Package

Name: calibre
Purl: pkg:deb/ubuntu/calibre@5.37.0+dfsg-1build1?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.25.0+dfsg-2

5.33.2+dfsg-1

5.34.0+dfsg-1

5.35.0+dfsg-1ubuntu2

5.37.0+dfsg-1

5.37.0+dfsg-1build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "5.37.0+dfsg-1build1",
            "binary_name": "calibre"
        },
        {
            "binary_version": "5.37.0+dfsg-1build1",
            "binary_name": "calibre-bin"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26065.json"

Ubuntu:24.04:LTS

calibre

Package

Name: calibre
Purl: pkg:deb/ubuntu/calibre@7.6.0+ds-1build1?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

6.*

6.24.0+ds-1

6.29.0+ds-1

7.*

7.0.0+ds-1

7.1.0+ds-1

7.1.0+ds-2

7.2.0+ds-1

7.2.0+ds-1build1

7.3.0+ds-1

7.4.0+ds-1

7.5.1+ds-1

7.5.1+ds-2

7.5.1+ds-3

7.6.0+ds-1

7.6.0+ds-1build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "7.6.0+ds-1build1",
            "binary_name": "calibre"
        },
        {
            "binary_version": "7.6.0+ds-1build1",
            "binary_name": "calibre-bin"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26065.json"

Ubuntu:25.10

calibre

Package

Name: calibre
Purl: pkg:deb/ubuntu/calibre@8.8.0+ds-3build1?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

7.*

7.26.0+ds-4build1

8.*

8.3.0+ds-1

8.4.0+ds-1

8.5.0+ds-1

8.6.0+ds-1

8.7.0+ds-1

8.8.0+ds-2

8.8.0+ds-3

8.8.0+ds-3build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "8.8.0+ds-3build1",
            "binary_name": "calibre"
        },
        {
            "binary_version": "8.8.0+ds-3build1",
            "binary_name": "calibre-bin"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26065.json"