One-byte memory disclosure via IPTC output encoding
Published Jun 10, 2026 · Updated Jun 10, 2026
Out-of-bounds read in the IPTC encoder in ImageMagick before 6.9.13-47 and 7.1.2-22 allows local users to expose one byte of memory. The encoder reads one byte beyond a heap buffer while producing IPTC output; the responsible function and boundary calculation are undisclosed. Exploitation requires local processing of a crafted input during IPTC output generation, with no reported ability to modify data.
Summary
What happened
Out-of-bounds read in the IPTC encoder in ImageMagick before 6.9.13-47 and 7.1.2-22 allows local users to expose one byte of memory. The encoder reads one byte beyond a heap buffer while producing IPTC output; the responsible function and boundary calculation are undisclosed. Exploitation requires local processing of a crafted input during IPTC output generation, with no reported ability to modify data.
The record
- CVE
- CVE-2026-42326
- Published
- Jun 10, 2026
- Updated
- Jun 10, 2026
- Vendor
- ImageMagick Studio LLC
- Product
- ImageMagick
- Classifications
- CWE-191, CWE-125
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 10, 2026CVE publishedPublication date reported by the CVE source.
- Jun 10, 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=< 6.9.13-47
- Affected versionversion=< 7.1.2-22
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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