Code execution via unchecked TIF heap copy
Published Aug 20, 2026 · Updated Aug 21, 2026
Heap-based buffer overflow in TIF parsing in GIMP 3.2.2 allows remote attackers to execute code via a crafted image file. The TIF parser copies attacker-controlled data into a heap buffer without verifying that the source length fits the destination allocation. Exploitation requires user interaction, such as opening a malicious TIF file or loading content that causes GIMP to parse one, and code runs in the current process.
Summary
What happened
Heap-based buffer overflow in TIF parsing in GIMP 3.2.2 allows remote attackers to execute code via a crafted image file. The TIF parser copies attacker-controlled data into a heap buffer without verifying that the source length fits the destination allocation. Exploitation requires user interaction, such as opening a malicious TIF file or loading content that causes GIMP to parse one, and code runs in the current process.
The record
- CVE
- CVE-2026-18302
- Published
- Aug 20, 2026
- Updated
- Aug 21, 2026
- Vendor
- GIMP
- Product
- GIMP
- Classifications
- CWE-122, T1203
- 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?
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- 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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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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