CVE-2025-70559
Publication date 3 February 2026
Last updated 28 September 2026
Ubuntu priority
Description
pdfminer.six before 20251230 contains an insecure deserialization vulnerability in the CMap loading mechanism. The library uses Python pickle to deserialize CMap cache files without validation. An attacker with the ability to place a malicious pickle file in a location accessible to the application can trigger arbitrary code execution or privilege escalation when the file is loaded by a trusted process. This is caused by an incomplete patch to CVE-2025-64512.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| pdfminer | 26.04 LTS resolute |
Not affected
|
| 24.04 LTS noble |
Fixed 20221105+dfsg-1ubuntu0.1~esm1
|
|
| 22.04 LTS jammy |
Fixed 20220319+dfsg-1ubuntu0.1~esm1
|
|
| 20.04 LTS focal |
Fixed 20191020+dfsg-2ubuntu0.1~esm1
|
|
| 18.04 LTS bionic |
Fixed 20140328+dfsg-1ubuntu0.18.04.1~esm1
|
|
| 16.04 LTS xenial |
Fixed 20140328+dfsg-1ubuntu0.16.04.1~esm1
|
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CVSS version: CVSS v3.0
Base score
6.5 · Medium
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
References
Related Ubuntu Security Notices (USN)
- USN-8837-1
- pdfminer vulnerabilities
- 28 September 2026