Medium 4.8Published Aug 20, 2026

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

Updated under an hour ago (2026-10-19 09:00 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 4.8 MEDIUM (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-122
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

libvips libvips libvips:libvips (from the name)	before 8.18.3	CNA record

References

https://github.com/libvips/libvips/security/advisories/GHSA-fh99-55jf-5hj3x-refsource-confirm
https://github.com/libvips/libvips/pull/5037x-refsource-misc
https://github.com/libvips/libvips/commit/dc945573e15d598054e701c65b90a35b16b19304x-refsource-misc
https://github.com/libvips/libvips/releases/tag/v8.18.3x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.