libvips: Integer overflow leading to heap buffer overflow leading to possible attacker-controlled mmap-resident write
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, a crafted many-band TIFF processed through VipsForeignLoadTiff can evade scanline validation in libvips/iofuncs/image.c and cause an integer overflow in vips_image_sanity. The resulting buffer-region calculation can access attacker-controlled negative offsets in mmap-resident allocations, allowing reads or writes of other image data, possible data disclosure through uncompressed .v output, and likely process crashes. Remote code execution has not been demonstrated but cannot be ruled out. This issue is fixed in version 8.18.3.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA libvips (libvips) Fixed in 8.18.3
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-69242
References
More libvips vulnerabilities
- TI-2026-02835 libvips extract.c vips_extract_area_build integer overflow CVSS 4.0MEDIUM 4.8
- TI-2026-02834 libvips extract.c vips_extract_band_build out-of-bounds CVSS 4.0MEDIUM 4.8
- TI-2026-02833 libvips unpremultiply.c vips_unpremultiply_build out-of-bounds CVSS 4.0MEDIUM 4.8
- TI-2026-02832 libvips bandrank.c vips_bandrank_build heap-based overflow CVSS 4.0MEDIUM 4.8
- TI-2026-02719 libvips csvload.c vips_foreign_load_csv_build heap-based overflow CVSS 4.0MEDIUM 4.8
- TI-2026-02718 libvips matrixload.c vips_foreign_load_matrix_header null pointer dereference CVSS 4.0MEDIUM 4.8
Sources
- CVE-2026-69242 · CVE Program
- CVE-2026-69242 · NVD
- FIRST EPSS
- CVE-2026-69242 · Red Hat security data · CC BY 4.0
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