---
title: "CVE-2026-88368: NanoSVG - Integer Overflow"
description: "NanoSVG contains an integer overflow caused by incorrect numeric conversion in the rasterizer's nsvg__addActive() function when processing large geometry coordinates, letting attackers cause denial of service via crafted SVG documents."
url: https://panop.io/threat-heartbeat/CVE-2026-88368/
---

# CVE-2026-88368 NanoSVG - Integer Overflow

NanoSVG contains an integer overflow caused by incorrect numeric conversion in the rasterizer's nsvg\_\_addActive() function when processing large geometry coordinates, letting attackers cause denial of service via crafted SVG documents.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.39% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-88368)

## Details

Type

Integer Overflow

Impact

Denial Of Service

CVSS vector

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

Published

24 September 2026

Updated

15 October 2026

Weakness

[CWE-681](https://cwe.mitre.org/data/definitions/681.html)

## Vendor fix

Update to the latest version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-88368](https://nvd.nist.gov/vuln/detail/CVE-2026-88368)
- [https://github.com/memononen/nanosvg/issues/292](https://github.com/memononen/nanosvg/issues/292)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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