libvips: Possible heap-based buffer read overflow when decoding a well-crafted RLE Radiance image
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- 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, the old-style Radiance RLE decoder in libvips/foreign/radiance.c can process a repeat marker at the beginning of a scanline in scanline_read_old and read q[-1] before any prior pixel exists. A crafted Radiance image loaded through VipsForeignLoadRad can therefore disclose four bytes of adjacent heap data, most likely other image data. 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-2026-70653
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-2026-70653 · CVE Program
- CVE-2026-70653 · NVD
- FIRST EPSS
- CVE-2026-70653 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences