Quick answers
- Is CVE-2026-112900 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-112900 being exploited in the wild.
- How severe is CVE-2026-112900?
- Critical severity, with a CVSS score of 4, published 19 October 2026.
- Which products and versions are affected?
- pillow (PyPI) >= 2.6.0, < 13.0.0, ECOSYSTEM:introduced=2.6.0,fixed=13.0.0; Python Pillow Contributors Pillow 2.6.0 through 12.x.
- Is there a fix for CVE-2026-112900?
- Yes. pillow (PyPI): upgrade to 13.0.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-112900 attacked?
- It is attacked over the network or with local access, in a software library.
- Am I affected by CVE-2026-112900?
- Check whether you run pillow (PyPI) or Python Pillow Contributors Pillow at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- pillow (PyPI): upgrade to 13.0.0 or later
pip install "pillow>=13.0.0"
Technical details
The vulnerability exists in EpsImagePlugin.Ghostscript, which passes a caller-controlled filename after the -f flag without converting it to an absolute path. A filename beginning with a hyphen can be misinterpreted as a Ghostscript option, allowing argument injection. Arbitrary command execution requires a leading @ filename (argument-file syntax) and attacker control of that referenced file; the default -dSAFER sandbox can be bypassed. The flaw affects all versions from 2.6.0 through 12.x, and was fixed in version 13.0.0 by converting the EPS filename to an absolute path before invocation.
Affected products
- Python Pillow Contributors Pillow 2.6.0 through 12.x
Identifiers
- CVE-2026-112900
- GHSA-w889-685w-c8fh
Timeline
- 2026-10-19: disclosed
- 2026-10-16: patched: Fixed in version 13.0.0 released October 16, 2026