CVE-2026-46599

highCVSS 7.5covered by 1 sourcefirst seen 2026-07-02

The TIFF decoder does not place a limit on the size of PackBits-compressed data. A maliciously-crafted image can exploit this to cause a small image (both in terms of pixel width/height and encoded size) to make the decoder decode large amounts of compressed data.

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Exploitation outlook

Low exploitation risk0.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.

Advisory coverage (1)

highGHSA-q675-qj96-32m9: golang.org/x/image/tiff has excessive resource consumption in PackBits decompressionghsa · 2026-07-02

External references

NVD record for CVE-2026-46599

CVE.org record

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