Potential buffer overflow in psd-tools
Published Mar 14, 2020 · Updated Oct 23, 2026 · Also known as PYSEC-2020-91, GHSA-22jr-vc7j-g762
Original summary
Normalized public record · Updated Oct 23, 2026
Potential buffer overflow in psd-tools
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
An issue was discovered in psd-tools before 1.9.4. The Cython implementation of RLE decoding did not check for malformed PSD input data during decoding to the PIL.Image or NumPy format, leading to a Buffer Overflow.
Potential impact
An issue was discovered in psd-tools before 1.9.4. The Cython implementation of RLE decoding did not check for malformed PSD input data during decoding to the PIL.Image or NumPy format, leading to a Buffer Overflow.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- 20%
- Aliases
- PYSEC-2020-91, GHSA-22jr-vc7j-g762
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Mar 14, 2020 · Last refreshed Oct 23, 2026