Staging Environment: Content and features may be unstable or change without notice.
Advisory details: ubuntu_osv / UBUNTU-CVE-2026-3029
Advisory ID ubuntu_osv/UBUNTU-CVE-2026-3029
Aliases CVE-2026-3029
Summary A path traversal and arbitrary file write vulnerability exist in the embedded get function in '_main_.py' in PyMuPDF version, 1.26.5.
Status Published
Exploitability 0.5
Weighted Severity 7.4
Risk 3.7
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 7.5 https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3029.json
cvssv3.1 8.2 https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3029.json
ubuntu-priority medium https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3029.json
Reference id Reference type URL
https://github.com/pymupdf/PyMuPDF/commit/756e1ee94421fb7c570ef49bfdac21c72025417d
https://github.com/pymupdf/PyMuPDF/issues/4767
https://ubuntu.com/security/CVE-2026-3029
https://www.cve.org/CVERecord?id=CVE-2026-3029
https://www.kb.cert.org/vuls/id/504749
603cafe38a183b8bab34f16d05043b4185d8d40a Other http://github.com/pymupdf/PyMuPDF/commit/603cafe38a183b8bab34f16d05043b4185d8d40a
PyMuPDF Other http://github.com/pymupdf/PyMuPDF
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3029.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:L/UI:R/S:C/C:H/I:H/A:H Found at https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3029.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: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2026-03-24T01:34:12Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/3xxx/CVE-2026-3029.json

Source Advisory: vulnrichment/CVE-2026-3029

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]

Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2026-03-24T01:34:12Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/3xxx/CVE-2026-3029.json

Source Advisory: vulnrichment/CVE-2026-3029

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]