CVE-2026-49836
psd-tools is a Python package for working with Adobe Photoshop PSD files.
Impact
psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to version 1.17.1, `SmartObject.save()` writes an embedded smart object to a path taken verbatim from the PSD file. Because that name is attacker-controlled and unsanitised, a tool that extracts embedded objects from an untrusted `.psd` can be made to write attacker-chosen bytes to an attacker-chosen path (absolute or `../`-traversing), outside its intended output directory. A secondary issue in `SmartObject.open()` for external-kind smart objects allows the attacker-controlled `fullPath` descriptor to be used as an arbitrary file read path, enabling exfiltration of the read content to the controlled write destination. Both issues are fixed in v1.17.1.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | psd-tools | <= 1.17.0 | 1.17.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-2rmg-vrx8-9j2f
- https://github.com/psd-tools/psd-tools/security/advisories/GHSA-2rmg-vrx8-9j2f
- https://github.com/psd-tools/psd-tools/pull/657
- http://github.com/psd-tools/psd-tools/releases/tag/v1.17.1
- https://nvd.nist.gov/vuln/detail/CVE-2026-49836
- https://github.com/pypa/advisory-database/tree/main/vulns/psd-tools/PYSEC-2026-2969.yaml