Memory corruption via mismatched TIFF tile components
Published Jul 20, 2026 · Updated Jul 20, 2026
Heap-based buffer overflow in libvips 8.18.1 and earlier allows local users to corrupt memory through a crafted tiled TIFF image. In rtiff_decompress_jpeg_run, tiffload sizes each JPEG tile scanline from TIFF photometric metadata without verifying that it matches the decoder output component count; the JPEG2000 path likewise accepted more decoded components than the output image has bands. A low-privileged local user must cause the host to process an untrusted TIFF containing a JPEG or JPEG2000 tile, with consequences bounded to memory corruption in the vulnerable process.
Summary
What happened
Heap-based buffer overflow in libvips 8.18.1 and earlier allows local users to corrupt memory through a crafted tiled TIFF image. In rtiff_decompress_jpeg_run, tiffload sizes each JPEG tile scanline from TIFF photometric metadata without verifying that it matches the decoder output component count; the JPEG2000 path likewise accepted more decoded components than the output image has bands. A low-privileged local user must cause the host to process an untrusted TIFF containing a JPEG or JPEG2000 tile, with consequences bounded to memory corruption in the vulnerable process.
The record
- CVE
- CVE-2026-35591
- Published
- Jul 20, 2026
- Updated
- Jul 20, 2026
- Vendor
- libvips
- Product
- libvips
- Classifications
- CWE-122
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 20, 2026CVE publishedPublication date reported by the CVE source.
- Jul 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=<= 8.18.1
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo