Code execution via PSD parsing integer overflow
Published Aug 20, 2026 · Updated Aug 21, 2026
Integer overflow in PSD parsing in GIMP 3.2.2 allows remote attackers to execute code via a crafted PSD file opened by a user. The PSD loader performs arithmetic on attacker-controlled size data without validating overflow before allocating a buffer, so a malformed file can corrupt memory during parsing. Exploitation requires user interaction, such as opening a malicious PSD or content that causes GIMP to parse one, and code runs in the current process.
Summary
What happened
Integer overflow in PSD parsing in GIMP 3.2.2 allows remote attackers to execute code via a crafted PSD file opened by a user. The PSD loader performs arithmetic on attacker-controlled size data without validating overflow before allocating a buffer, so a malformed file can corrupt memory during parsing. Exploitation requires user interaction, such as opening a malicious PSD or content that causes GIMP to parse one, and code runs in the current process.
The record
- CVE
- CVE-2026-18301
- Published
- Aug 20, 2026
- Updated
- Aug 21, 2026
- Vendor
- GIMP
- Product
- GIMP
- Classifications
- CWE-190, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 20, 2026CVE publishedPublication date reported by the CVE source.
- Aug 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.2.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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