Integer overflow in Mrnanko Webp4j
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 a…
EPSS: 0.000 (5.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Mrnanko Webp4j — versions 1.0, 1.1, 1.2
Weakness classification (CWE)
References
- VDB-349653 | MrNanko webp4j gif_decoder.c DecodeGifFromMemory integer overflow (technical-description, vdb-entry)
- VDB-349653 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #765972 | MrNanko(dev.matrixlab:webp4j) webp4j <= 1.4.0 Integer Overflow to Buffer Overflow (third-party-advisory)
- cna@vuldb.com (issue-tracking)
- cna@vuldb.com (issue-tracking)
- cna@vuldb.com (exploit)
- cna@vuldb.com (patch)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-3707?
- CVE-2026-3707 is a medium-severity vulnerability in Mrnanko Webp4j, classified under CWE-189. CVSS score: 5.3/10. Published 2026-03-08.
- How severe is CVE-2026-3707?
- Medium severity. CVSS v3 base score is 5.3 out of 10.