python-pillow Pillow Os Command Injection Flaw (CVE-2026-112900) Rated CVSS 9.2
A newly published critical vulnerability in python-pillow Pillow carries a CVSS score of 9.2. Here is what is affected and how to respond.
Key points
- CVE-2026-112900 affects python-pillow Pillow.
- CVSS 9.2 (Critical).
- No exploitation confirmed yet.
python-pillow Pillow is affected by CVE-2026-112900, a OS command injection that the National Vulnerability Database rates 9.2 out of 10.
At a glance
- CVE
- CVE-2026-112900
- Product
- python-pillow Pillow
- CVSS
- 9.2 Critical
- Weakness
- OS command injection
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: Pillow is a Python imaging library. From 2.6.0 until 13.0.0, Pillow is vulnerable to argument injection when invoking Ghostscript for EPS input. EpsImagePlugin.Ghostscript passes a caller-controlled input filename after -f without converting it to a safe absolute path, so a name beginning with a hyphen can be interpreted as a Ghostscript option. An attacker who controls the filename can inject Ghostscript arguments. Arbitrary command execution specifically requires a leading @ argument-file filename and control of the referenced text file containing additional Ghostscript arguments; the reported chain reproduces with the default -dSAFER invocation. This issue is fixed in version 13.0.0.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Python-Pillow | Pillow | >= 2.6.0, < 13.0.0 |
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-112900
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-112900?
CVE-2026-112900 is a OS command injection vulnerability in python-pillow Pillow.
How severe is CVE-2026-112900?
It has a CVSS score of 9.2 Critical.
Is CVE-2026-112900 being exploited?
There is no public confirmation of exploitation at the time of publication.
