What’s Vulnerable › Vulnerabilities

CVE-2026-70653: libvips: Possible heap-based buffer read overflow when decoding a well-crafted RLE Radiance image

• Severity: medium (CVSS 4.8 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-20 · updated 2026-10-26
• Weakness: CWE-122

Description

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.

Affected products

• libvips: before 8.18.3

References

• https://github.com/libvips/libvips/commit/dc945573e15d598054e701c65b90a35b16b19304
• https://github.com/libvips/libvips/pull/5037
• https://github.com/libvips/libvips/releases/tag/v8.18.3
• https://github.com/libvips/libvips/security/advisories/GHSA-fh99-55jf-5hj3

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