Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The Magick.NET-Q8 and Magick.NET-Q16 packages (multiple builds, all versions before 14.8.0) are vulnerable to integer overflows in MNG magnification handling, which can cause an out-of-bounds heap write. The source says triggering this requires an image with very large dimensions, and the reporter notes that the example security policies limit width and height. Upgrade to version 14.8.0 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.8 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0095, the 61st percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:22 UTC First seen by agentprime
- 31 Oct 2026, 15:22 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-qp29-wxp5-wh82
- OSV: GHSA-qp29-wxp5-wh82
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qp29-wxp5-wh82
- nvd.nist.gov/vuln/detail/CVE-2025-55154
- github.com/ImageMagick/ImageMagick
- github.com/dlemstra/Magick.NET/releases/tag/14.8.0
- issuetracker.google.com/savedsearches/7155917
- lists.debian.org/debian-lts-announce/2025/09/msg00012.html