CVE-2026-3707: Integer Overflow Vulnerability (CVSS 5.3)

Description

A vulnerability was identified in MrNanko webp4j up to 1.3.x. The affected element is the function DecodeGifFromMemory of the file src/main/c/gif_decoder.c. Such manipulation of the argument canvas_height leads to integer overflow. Local access is required to approach this attack. The exploit is publicly available and might be used. The name of the patch is 89771b201c66d15d29e4cc016d8aae82b6a5fbe1. It is advisable to implement a patch to correct this issue.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS 4.0

1.9/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.11%

1.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published: Mar 8, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-3707?

A vulnerability was identified in MrNanko webp4j up to 1.3.x. The affected element is the function DecodeGifFromMemory of the file src/main/c/gif_decoder.c. Such manipulation of the argument canvas_height leads to integer overflow. Local access is required to approach this attack. The exploit is publicly available and might be used. The name of the patch is 89771b201c66d15d29e4cc016d8aae82b6a5fbe1. It is advisable to implement a patch to correct this issue.

How severe is CVE-2026-3707?

CVE-2026-3707 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3707?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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